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1.
when you have sex with a krusty vagina with crabs which then transfers to your dick.
That girl gave ma a krusty crab last nite it was wack.
by vkp January 26, 2008
 
2.
the act of taking your foot
putting the big toe in a woman's vagina. simultaneously putting the pinky toe in her ass..and pinching.
"hey you know the head cheerleader at school? i gave her a krusty crab last night!"

"no way dude!"
by balh! September 05, 2008