Underboob

//ˈʌndəbuːb// noun, slang

noun, slang ·Uncommon ·College level

Definitions

Noun
  1. 1
    The lower part of a woman's breast, especially when uncovered or revealed by clothing. colloquial

    "The banning of the latest FHM cover at New York's Grand Central Station due to its depiction of what is apparently known as an underboob tells us something crucial about the depiction of women in a patriarchal society and its relationship to the commercial marketplace."

Synonyms

All synonyms
reverse cleavage

Example

More examples

"Mike's hobby was collecting pictures of underboob."

Etymology

From under- + boob.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.