yellow jacket

noun

A predatory wasp with alternating black and yellow stripes around the abdomen, usually of the genera Vespula or Dolichovespula.

Similar
canaryyellow vestpentobarbital sodiumpentobarbitalNembutalyellow hornetVespula maculifrons

Meanings

nounyellow jacket (plural yellow jackets)

plural yellow jackets · alternative yellow-jacket · alternative yellowjacket

  1. USA predatory wasp with alternating black and yellow stripes around the abdomen, usually of the genera Vespula or Dolichovespula.

    Rotting fruit lying on the ground in the back yard are drawing yellowjackets, got to get rid of them before one of the dogs get stung.

    2010, Ray Schar, Wonderfully Weird World, page 33
    5 more examples

    Yellowjackets (Vespula spp.) and paper wasps (Polistes spp.) are beneficial insects in that they are predators of house flies and insect pests that damage landscape trees and crops.

    2002, Dennis R. Pittenger, California Master Gardener Handbook, page 183

    The eastern yellowjacket (V. maeulifrons) and the hybrid yellowjacket (V. flavopilosa) are major picnic and campsite pests, especially in the fall in the eastern United States.[…]Many people are stung while getting a drink of water from fountains frequented by yellowjackets seeking water.

    2002, Roger D. Akre, Hal C. Reed, “19: Ants, Wasps an Bees (Hymenoptera)”, in Gary R. Mullen, Lance A. Durden, editors, Medical and Veterinary Entomology, page 398

    Vespula and Dolichovespula, collectively called yellowjackets, are broadly distributed in subarctic and temperate zones of the Northern Hemisphere, extending no farther into the tropics than high elevations at the temperate/tropical boundary (Hunt et al. 2001a).[…]The wasp in your summertime can of soda or beer is a yellowjacket.

    2007, James H. Hunt, The Evolution of Social Wasps, page 61

    Yellow-jacket wasps breed quickly to maximise the use of available resources, and trying to outpace their productivity is nearly impossible. / For instance, a 2002 study showed that 80 traps around a 20-hectare water park failed to control yellow-jackets; and in 2006 after 42,367 yellow-jackets were slaughtered at a health spa, 91 stings were still reported.

    2018 August 26, Hannah Hyam, “Letters: Wasp traps increase the risk of stings”, in The Guardian

    Mr. Barron immediately retreated, and later sprayed hornet killer on the nest with his son. He said that just angered the yellow jackets, the highly aggressive wasps that live in such colonies. Mr. Barron was stung 11 times.

    2019 June 30, Mariel Padilla, “Officials Warn of Wasp ‘Super Nests’ in Alabama”, in The New York Times
  2. slangA capsule of pentobarbital sodium (or sometimes other barbiturates), especially when used as a recreational drug.

    “Whatchu got, man?” / “Reds, bennies, dexies, yellow jackets, demmies.” / “Yeah, demmies're good shit, man. I pay you. Fuck. I got money. I'm hurting inside. Got beat up. Where my money?”

    1998, Jeffery Deaver, The Coffin Dancer, New York, NY: Pocket Books, published 2021, →ISBN, page 285
    2 more examples

    Nearly every pharmaceutical house has its own brands, sold in tablets, solutions or brightly-colored capsules, on which its “detail men” keep doctors informed. Probably the most popular successors to Veronal are Seconal (“red birds” to the bootleg trade) and Nembutal (“yellow jackets”).

    1952 October 13, Richard L. Williams, “‘To sleep: perchance…’”, in Life, volume 33, number 15, page 110

    Very soon he had a second addiction, phenobarbital; piled on top of his first one, alcohol. And the next step was to begin taking them together, just to be doubly sure he was going to feel better. He would wash down a “yellow jacket” pill with a shot of whisky.

    1955, James Lamb Free, Just One More: Concerning the Problem Drinker, New York, NY: Coward-McCann, Inc., page 11

    Synonyms: canary

  3. Synonym of yellow vest (“member of a French protest movement which started in late 2018”).

    Police and hundreds of so-called “yellow jackets” protesting against high taxes and living costs have clashed in Brussels as the movement that started in France two weeks ago gained traction in Belgium.

    2018 November 30, “Belgian police and ‘yellow jacket’ protesters clash in Brussels”, in Independent.ie
    1 more example

    If you’re seeking the cause of the Dutch agriculture and fisheries protests, the Canadian trucker convoy, the yellow-jackets in France, the farmer rebellion in India a few years ago, the recent catastrophic collapse of Sri Lanka, or the energy crisis in Europe and Australia, you can instruct yourself by the recent pronouncements from Deloitte.

    2022 August 15, Jordan Peterson, “Peddlers of environmental doom have shown their true totalitarian colours”, in The Telegraph

    Synonyms: yellow vest

Synonyms & antonyms

nounA capsule of pentobarbital sodium (or sometimes other barbiturates), especially when used as a recreational drug.

Similar

nounSynonym of yellow vest (“member of a French protest movement which started in late 2018”).

More synonyms by meaning

nouna barbiturate (trade name Nembutal) used as a sedative and hypnotic and antispasmodic

Similar
pentobarbital sodiumpentobarbitalNembutal

nounsmall yellow-marked social wasp commonly nesting in the ground

Similar
yellow hornetVespula maculifrons
Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From yellow + jacket. * (pentobarbital sodium): Named after the yellow capsule of the Nembutal brand.

Full word history & related roots →
Cite this entry
APA

yellow jacket. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/yellow%20jacket

MLA

“yellow jacket.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/yellow%20jacket. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “yellow jacket,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/yellow%20jacket.

Source: yellow jacket on Wiktionary, CC BY-SA 4.0.