underbum
Noun
The lower part of the buttocks, as revealed by certain clothing such as skimpy shorts.
Usage- UK usage
- Slang
- Examples
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More examples (2)
Now, no one is pretending this is an easy look to pull off, but whereas the whale tail was shaming because it was a fail – the byproduct of you scrabbling in the bottom of your bag for your Oyster card – the underbum is at least bold and brazen, in a lollipoppy, Katy Perry or Rihanna kind of a way.
They’ve always been a big hit at the box office: ethnically diverse, incredibly loyal, keen wearers of white vests (for the men) and underbum-showcasing hotpants (for the ladies).
Not done with just showing underbum, the front of the star's shorts featured distressed holes which the top her thighs showed through.
Word forms
underbums