Top Definition
A portmanteau, shortened from 'shit-kicking ninja'.
Durk, the Shninja, is from Uranus.
by chaosomega November 22, 2011
1 more definition
A she ninja.
Woman: Sheik is such a cool ninja!

Man: No bitch, she's a shninja!
by Hahaheheheheheheheahahahhaah March 14, 2009

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