slim jim

noun

A thin strip of metal such as spring steel used to unlock automobile doors without a key.

Similar
shim
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Meanings

slim jim1

nounslim jim (plural slim jims)

plural slim jims

  1. informalA thin strip of metal such as spring steel used to unlock automobile doors without a key.

    Synonyms: shim

  2. informalSomeone or something very thin.
  3. UKhistoricalA narrow necktie worn by teddy boys.
  4. A kind of dipole radio antenna.
adjectiveslim jim (not comparable)
  1. informalnot comparableVery thin.

    That ought to make you / An ideal one-girl farm, / And give you a chance to put some strength / On your slim-jim arm.

    1916, Robert Frost, A Girl's Garden

Slim Jim2

nounSlim Jim (plural Slim Jims)

plural Slim Jims

  1. UKrail transportA British Rail Class 33/2 locomotive.

Synonyms & antonyms

nounA thin strip of metal such as spring steel used to unlock automobile doors without a key.

Similar
shim
Also see
jimmyshim

Origin

In allusion to the subclass being 7 inches narrower, due to being constructed for use on the gauge-restricted Hastings line.

Full word history & related roots →
Cite this entry
APA

slim jim. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/slim%20jim

MLA

“slim jim.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/slim%20jim. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “slim jim,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/slim%20jim.

Source: slim jim on Wiktionary, CC BY-SA 4.0.