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1.
A form of kick. When someone jumps, and puts both their feet to the chest or stomach of another person, and kicks as hard as they can.
Often the person delivering the fly kick will fall over, but the pain that is inflicted is often well worth it.
"I heard someone took that guy out!"
"Yeah, he got fly kicked."
"Brutal"
by CidGrr October 04, 2009
 
2.
a fly kick is also known as a side kick
yo i cant find my fly kick
by Candice Elise October 25, 2007