Amsterbate 

The act of smoking weed alone.

I Amsterbate quite often!

Amsterbate by tfl88 August 28, 2011

Afterbate 

The akward moments after you masturbate and you clean up the jizz, put your clothes back on, think about how fucked up you are, etc...

Jack: "yo I just walked in on tom wiping his cock with tissues"
Tim: "ugh you saw him afterbate

Afterbate by M193 January 22, 2014

Assturbate 

To bring oneself to orgasm by various acts of anal-simulation.

Vanilla masturbation doesn't work for me anymore, now the only way I can cum is if I assturbate.

Assturbate by Tenshin_ April 7, 2016

masterbate 

To masturbate like a master

I masterbated really well yesterday.

masterbate by ‮ekil skool ti tahw t'nsi sihT January 12, 2022

Masterbaterium 

A room build or allocated for the sole purpose of spanking yer love hose, wanking in general or having a wankparty. Usually painted an off yellow colour and containing a sink and towels.

I will be back in a moment Im just going to polish my bishop in the Masterbaterium. Good boy, make sure you use the wanklock on the door.

Masterbaterium by DrLoveNuts July 25, 2007

masterbate 

how dumb people spell "masturbate"

i gotsta ta go masterbate rihgt no!

masterbate by meh July 1, 2003

Masterbate 

Masturbation for professionals.

"You spelled masturbate wrong."
"Your masturbation is only amateur. When you do it as much as me it becomes masterbate."

Masterbate by Niladen September 3, 2013