underbum
underbum · underbums
The lower part of the buttocks, as revealed by certain clothing such as skimpy shortsThe lower part of the buttocks, as revealed by certain clothing such as skimpy shorts.
Meaning
1 senses(UK, slang)The lower part of the buttocks, as revealed by certain clothing such as skimpy shorts.
Origin
From under- + bum, by analogy with underboob.From under- + bum, by analogy with underboob.
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