when you are rowing and your shaft gets stuck in the water causing the oar to stay in place. basically get hit by the oar when you catch a crab. Crabs can range from small hits that don't hurt much to an ejection crab were you are shot out of the boat.
Did you see that kid he made his boat lose because he caught a crab

Did you see him catch the ejection crab it shot him straight out of the boat haha
by waaaa man June 3, 2010
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Oh man, i did ashley last nite and now i have crabs on my peepee
by lightpost July 19, 2006
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'The Crab' is a outrageous dance move that involves putting your legs over your shoulders and then walking/dancing on you hands. The move gets it name since it is really only possible to move sideways while attempting the move. Best performed as a final move to sink opponents in a particularly dirty B-Boy battle. Do not use it to early in the night because people may not be ready and can become offended.

First made popular by it's inventor B-boy 'Willie Wicks' a now retired B-boy. Who vows never go 'Crabbing' again.

Warning: This move requires above average flexibility and can cause embarrassing failures if not treated with respect.
Wow did you see that dude pull out the Crab on the dance floor last night?
by Dance historian February 19, 2010
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little bugs that crawl and bite your nut sack
me : DUDE! guess what !!??
jon: what!!??
me : my sack itches
jon: ok why are you telling me ?
me : tell your sleezy douche bag mom i said thanks for the crabs!
by vagine ridar January 21, 2008
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def1: infestation of the pubic hair by crab lice
def2: These crustaceans have a hard bony or chitinous outer covering with a small abdomen concealed beneath it, short antennae, and five pairs of legs, of which the anterior pair are large and pincerlike.
crabs of the ocean
crabs in the balls
by http://anserq.net January 1, 2006
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little bugs that like staying in your pubes
oh man, last night just when i was starting to fuck stacies mom, i saw lots of crabs in her pussy hair
by Assmaster3000 December 22, 2005
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