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1.
adj. Anything cunning, sneaky or underhand.

n. A deceitful, slimey or unscrupulous person; a thief or a conman.
Todd "Where's my wallet?"

Keith "I dunno, but there was a greasy old guy walking very closeley behind you five minutes ago, and he looked like a snave to me."

Todd "I think I saw him - short-arse, string vest, hairy arms?"

Keith "That's the one. Look, he's over there by the grocery stall, go get him."
by galacticbeetroot August 29, 2010
 
2.
People that are enormously cool, and deserve to be revered for ever and given free money when seen at the mall/in the streets/being cool.
Damn, Andrew and Shannon are the snavest people in the world!
by snavE werdnA March 06, 2006
 
3.
A slanderous term for a damaged vagina
She had received lots of hot beef injections, and her snave was beginning to fall apart
by crawlyvaginaface August 31, 2011