Boy: (Showing off his new bike)
(Friends crowd him thinking he's so cool with his new bike)
Mom:(Puts helmet on her son) Don't forget your helmet.
Boy: *embarrassed) Mom, don't be slapping my penis!
by UndeadCharlie3Tears November 1, 2014
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when after receiving oral sex the guy pulls his penis out of the chicks mouth and slaps her on the forehead with his dick
Man Last night I gave Veronica the wickest penis slap
by swil February 28, 2003
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When you get physically, mentally or emotionally kicked in the penis rather than in the balls because you do not seem to have any.
ex. Tommy: Did you hear about the guy who got kicked in the balls?
Jill: Yeah he got penis slapped.

ex 2. Phil: Yo how was the game? I heard the other team lost.
Joe: Yeah it was penis slapping man! You should've been there.
by FlavioIsLove November 10, 2019
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To shatter someones masculinity in some way or another.

For further reference, see "Don't be slappin' my penis" by Kollektivet on Youtube
Examples of Slapping someones penis:

Nurse: "I am sorry sir, but you have testicular cancer"

Mother:"You forgot your helmet, son"
by DizDeLusa September 16, 2017
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