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1.
verb: to perform a task exceedingly well; To succeed over another person.
I totally nwankoed your ass in Halo last night!
by Sister Mary Alice November 20, 2009
 
2.
Verb describing when a male ejaculates across a fire causing a hot flaming cumshot to penetrate someone across the fire.
I finally tried the famous nwanko at our church bonfire and it actually works! My dad loved it!
by Sister Michael December 13, 2009
 
3.
equivalent to "can you". The etymology is the famous Nigerian footballer's name, Nwanko Kanu. Thus, in a manner similar to cockney rhyming slang, an alternative way of saying "can you" is derived.
Nwanko get out of my way, you tramp.
by Rafe June 25, 2005