Grundies
/ˈɡɹʌn.dis/ noun, slang
noun, slang ·Uncommon ·College level
Definitions
Noun
- 1 Underpants. Australia, New-Zealand, UK, plural, plural-only, slang
"So I shrugged and shifted like my grundies were too tight."
Example
More examples"So I shrugged and shifted like my grundies were too tight."
Etymology
* As Grundies, an underwear brand name. * Possibly an abbreviated form of Reg Grundies, rhyming slang for undies, after media magnate Reg Grundy.