When a man slaps his phallus on a woman or man's asshole repeatedly. Often seen in pornos.
I was having sex with my wife last night and i pulled out and happy slapped her.
by Iron--Mike May 16, 2016
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in a forced alliance of marriage with your big fat granny.
unfunny at times but elitist humor

oc ; greg heffely, wimpy kid series.
1: whos those boomers there!!!!
2: your big fat granny with yur slap happy grandpappy
by yourswagindiegf November 26, 2021
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An old man that loves to slap during sex.

(From Diary of a Wimpy Kid)
Jared: Oh, man. My dad's a Slap Happy Grand Pappy
Mike: Sorry to hear that.
by SeevaGooner March 28, 2023
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Slap happy describes a guy who likes to jerk off A LOT - as in more than what is considered normal or healthy.
Dave: "Have you seen Bill around?" Bob, "No, I haven't seen Bill around in a long while - I heard he likes to stay in and slap his slap-stick around all day - I'm afraid he's gone slap happy!"
by flippedwaffle June 8, 2022
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Slapping the hands together as though you are happy and high on life for what you are doing at the moment, or what you are planing to do in the near future.
I'm slap happy because we are going to Mc.Donalds. Mc.Donalds is a "Slap Happy " place.
by Look0ut July 3, 2018
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A BDSM sex move where (during intercourse) you finish in her and take a poop in your hand, smack her with it and ditch her without untying her. Preferably because you hate them.
I met a guy last night and when we were getting naughty he came in me and performed a slap happy crappy. I never felt so embarrassed when my roommate came in
by catchingfire3 March 2, 2021
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