Top Definition
a person who shouldn't be fucked with, and has a knack for being amazing at life.
Wow, he just ran the 100 in 10.5 seconds!!

What a sex knight!
by sex knighttttt March 29, 2008
A knight, out on the battlefield, in full plate mail, with his cock out.
Holy shit, King Arthur is giving the mushroom tat! What a sex knight!
by TopKnot June 18, 2009
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