1 definition by e-pot

Top Definition
When your chest is unsupported and you're boobs are exposed from the side, usually while laying down; gravity will take its course and allows the breasts to fall to the side of the body, occassionally exposing them.Occuring most often while wearing a tank top
"i just want to give you a warning before i go to sleep....sometimes i get side boob"

"whats side boob?"

"sometimes my boobs fall out the sides of my tank top"
by e-pot July 31, 2008

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