Meanings
noungrundies pl (plural only)
- AustraliaNew ZealandUKpluralplural onlyslangUnderpants.
So I shrugged and shifted like my grundies were too tight.
2003, Ken Catran, Bloody Liggie, page 95
Origin
* As Grundies, an underwear brand name. * Possibly an abbreviated form of Reg Grundies, rhyming slang for undies, after media magnate Reg Grundy.
Full word history & related roots →Rhymes & wordplay
Rhymes with grundies
All rhymes →Cite this entry
APA
grundies. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/grundies
MLA
“grundies.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/grundies. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “grundies,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/grundies.
Source: grundies on Wiktionary, CC BY-SA 4.0.