Masturpause 

When Masturbating, you stop for whatever reason and when you begin to do it again, you have no idea why you stopped in the first place.

Bro, I was thinkin about that chick we saw at the bar laset night and I had a Masturpause

Masturpause by Doug Dipper January 29, 2008

masturbasement 

secluded, underground space in your home where you can finally jerk off in peace

"After my wife goes to sleep and I kick all of my guy friends out of my downstairs mancave, I get out my pornos and turn it into my very own private masturbasement."

masturbasement by Eric Rohmer October 10, 2014

MastuRPate

When somebody roleplays (RPs) with themselves in an online game, chat room, etc. May or may not involve alternate accounts.

Bob: Did you see Steve earlier? He was logged onto two of his accounts mastuRPating.

Josh: That's sad, man. He should make some friends so he doesn't have to mastuRPate.

MastuRPate by Mimi/Talset August 14, 2012

MasturbaSession 

The act of masturbating and smoking right after .

"Sarah came over, she almost interrupted my masturbasession"

MasturbaSession by MightQui January 8, 2021

masturbasex aka sexturbation 

masturbasex /mæstɚbəsɛks/ MASS-TUR-BUH-SEKS* (/mæstəbəsɛks/ MASS-TU-BUH-SEKS if you have a non-rhotic dialect)
noun • fictional

Sexual intercourse while masturbating

Etymology:
Masturbation; wanking (British)
Sex; sexual intercourse

jack and sabrina are having sex
Sabrina: "Uuuuh you know how masturbasex aka sexturbation, sex while masturbating, works?"
Jack: "Nope."
Sabrina: "While having sex, you can masturbate in any part of the penis with exception of the part that you're fucking"
Jack: "Imma try it"
starts to try
Jack: "aaaaaaaaah, i feel sooooo good!"
You: "wtf"
Jack: "lol he's reacting like 'whaaat' to our funny masturbasex"
Sabrina: "did yo0o0o0ou just BROKE thth-the forth wall, yah ... yah GOD-FUCKING-DAMN IDIOT!!"
Sabrina explodes
Jack: "what??????????????????????????????????!!!!"
You: "0_0" (actually maybe something more like 'lmao-bruh!!')

masturbasex aka sexturbation by Astronomicsmallchungustheorem December 28, 2021