Not an animal, a crayfish is in fact a fruit, often mistaken for a vegetable.
The trees were teaming with crayfish. It would be a bountiful this year!
by Bob Buttons July 07, 2004
Top Definition
Crayfish means crazy or mad.

That party was so crayfish!
Damn...what a crayfish class.
Did you see that new kid? He is totally crayfish!
Ahhh! This is driving me crayfish!

What? This is Crayfish!
Crayfish?!-No, this is SPARTA!
#crazy #mad #mental #unamigo #fou
by leetlemming March 10, 2009
A synonym for "crazy". An elongated form of "cray-cray", which is short for crazy. Used when someone or something is just so wacky you can't handle it.
God, that Lila is so crayfish!
Dude, that's completely crayfish...how embarrassing!
#crazy #wack #embarrassing #cool #immature #nickname
by Awkotacocrayfish December 06, 2011
An undesirable person who has the attributes of being cray cray or crazy.
Don't hang out with her, she's a crayfish.

There are crayfish everywhere on Black Friday.
#cray cray #crazy #redunkulous #insane #loser
by annietiger May 14, 2009
noun or adjective
someone or something that is absolutely crazy
Did you see her on the dance floor last night? She was dancing like a crayfish!

That party last night was crayfish!
#crazy #psycho #insane #fun #wild
by misocrayfish April 24, 2011
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