To deliver aggressive, comatose inducing sex to a female. Also know as "breakin' backs". When eating Alaskan Crab, you break the crabs back. Hence, when you break a chicks back, she got "crabbed". Can be used in different verb tenses also.
Dayum, look at the ass on that broad! She'll get crabbed in a heart beat.
by New Shoes July 21, 2006