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1.
When someone ejaculates into their hand and slaps an unsuspecting victim with said hand.
That girl walked in on him jerking it so he Timmy Slapped her!
by BrianHoffplinker December 03, 2012
88 6
 
2.
when you tell someone your name is timmy, and they do the southpark thing. you slap them (with the back of your hand) across the neck.
that way it's harder for them to say timmyyyy.
i introduced myself to kyle. he said timmyyyy, so i gave him a timmy slap
by pureblood420 April 16, 2009
0 11