mental masturbating 

When someone gets turned on with only the images the person thinks of in their head.

By the look of their face, I can tell they're currently mental masturbating.

mental masturbating by The Big Thicc August 14, 2019

masterbassing 

The act of self pleasure while listening to dubstep or any other bass heavy music.

Toby: Did you see Danny at that Excision concert last night?
Luke: Yeah man, he was totally masterbassing all over the place.
Toby: And when that bass dropped?
Luke: Yeah...I'm pretty sure Danny had to change his pants afterward.

masterbassing by whitepeoplelikedubsteptoo! February 20, 2011

masturbating

something that everyone has done or will do in the course of their lives, even if they keep denying it in front of their friends.

Scott: Joe, when you get home and watch that porn, and you are done masturbating, don't forget to wipe up the mess

Joe: I'm not gay, I don't do that

Scott: ummmmmmmm, sure you do, everyone does.

masturbating by My Name Is Hugh...Mungus July 12, 2009

Ninja Masturbating 

To covertly masturbate in the presence of others without their knowledge.

"At the bar I tried to listen intently to my friends at the table, but I was ninja masturbating and needed to finish off quickly."

Ninja Masturbating by ZombiUnikorn January 25, 2009

MastersBating 

Anyone masturbating while watching any footage from The Masters golf tournament.

He's at home MastersBating right now. Can't get enough of that golf.

MastersBating by Rockweezy April 8, 2010

masturbating

when a person 'makes love' to themselves by gently stroking their genital area. done for pleasure. women- often involves stimulating the clitoris, and sometimes involves inserting a long hard object into the vagina. men- involves wanking, i.e. gripping the hand around the penis and vigorously moving it up and down. masturbation can end in the woman/man cumming. often can cause embarrassment and often taboo, especially as regards to women.

omg my mum totally walked in on me havin a wank, dude!
no way, dude!
way!
no way!
way! and she was like, samuel, we are going to have a serious talk about masturbating!!

masturbating by nipcharmedtuck June 11, 2006

Masterdating 

When a person (typically a guy) goes out to see a movie, or visits a theme park, or place otherwise mostly occupied by couples or friends,but does this alone. This can cause sympathy from other people that watch them as they purchase tickets or enter the area. This is different from when a person grabs a cup of coffee, or sits in a coffee shop alone for a few minutes, or rents a movie, or eats fast food. Masterdating involves often going to a restaurant alone, and sitting at the table alone, while some people look and either feel bad, or think that the person is a looser, or going to see a movie alone. It is often done by older men that may be widowed, or by people that can't get a girlfriend, or are the "40 year old virgin" type

You: 4 tickets for (name of movie) please
Masterdater behind you: 1 ticket for (name of movie) please

You (thinking) awe, he's alone, i guess he's Masterdating.

Masterdating by titagula December 12, 2010