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
1 more definition
To crab is to steal or take something that isn't yours or to 'pinch' it. People changed from using the verb to pinch, to use the word crab as this is the thing a beach crab would do.
John crabbed all of my lunch today. He's such a crab.
by fezza March 15, 2015