Top Definition
When your banging two hot chicks, and fake jizz in hotty #1, then quickly jizz on the face of hotty #2. Followed by screaming TOUCHDOWN!!
"Johny's so cool, he onside kicked me and Jen last night".

"I know I heard him scream touchdown, from a block away".

"I know right".
by Codeman_333 July 15, 2010

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This is a sex in football terms phrase for "Asking out a slut"
"Hey man, so last night I did an Onside Kick with Denise...and dude you were right, we hooked up that same night"
by Mr. TSU November 11, 2007

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One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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