Top definition
When a persons
(normally female)

Bum merges into their leg and upper thigh area,
and looses all ass definition
thus creating the impression of a legbum.
most common in old people or the generally unfit,
and also brought on by the wearing of high waisted or loose clothing, where the saggy bum is allowed to merge with the thighs.
this is most unnatractive.
Cor look at her leg bum, that's disgusting.
she has a right legbum
that is one leggybum
by MarvelT November 18, 2010
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