back boobs

when a person is extremely fat..its the fat that hangs off the back of the chair and often resembles boobs.
wow that man has really large back boobs
by brian111111111111 August 09, 2008
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BPB (Back Problem Boobs)

Boobs that are so large that they cause back problems.
Yo man, that girl is stacked. She's got a mad case of BPB (Back Problem Boobs).
by boob enthusiast February 11, 2010
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