slapsterbating 

The erotic slapping of the genitals with the intentions to ejaculate.

Diedra is in to wild things. Her foreplay consists of her partner sensually slapsterbating her Clitorus maximus.

slapsterbating by horny narwhale March 6, 2015

Slapperbating 

The action of slapping your genitalia (not just for men) until the one who's genitalia is being slapped reaches orgasm.

John: Hey Frank, my Girlfriend and I just tried slapperbating eachother last night.

Frank: Really, I tried that and it hurt. A Lot.

Slapperbating by That_Slaperbating_Guy January 24, 2016

slasturbating 

masturbating in your sleep

Jimmy fell asleep with his dick in his hand and woke up with semen all over him and exclaimed, "Shit, I was slasturbating again!"

slasturbating by shittydrumsalot October 26, 2009

slasturbating 

staying inside all day to just sleep and masturbate

John: dude yesterday i was slasturbating like crazy

George: o yeah well i slasturbate like every other day

slasturbating by JabroniMaster February 21, 2011

Slapturbating 

When you aggressively slap your genitals to complete ejaculation.

Person: Do you slap to get off?

Person #2: What do you mean?

Person: You know Slapturbating, when you slap yourself to nut

Slapturbating by NjamesC April 1, 2020

sleepsterbating 

The act of masturbating from the minute you wake up just to fall back to sleep once again

Guy 1: why hasn't ethan woken up yet? It's noon
Guy 2: dude you know he's sleepsterbating, he's going to out for a while

sleepsterbating by FrostbiteXP November 30, 2015