when a person is extremely fat..its the fat that hangs off the back of the chair and often resembles boobs.
by brian111111111111 October 5, 2008
Get the back boobsmug. by boob enthusiast February 11, 2010
Get the BPB (Back Problem Boobs)mug.
Get the back boobsmug.
Get the BPB (Back Problem Boobs)mug.