mastab8r 

Another way of writing masturbater, usually used when texting people.

"no probs, c ya l8r mastab8r!"

mastab8r by Danofthepleasedwimmen October 13, 2006

mastabruise

when you materbate so much or very hard that your dick turns into a big bruise

dude i was materbating so hard i got a mastabruise

mastabruise by evansl8esl8esl8e January 15, 2009

Mastabort 

The act of cancelling masturbation after interruption

I had to mastabort the other day as my mother had just walked in the room mid session!

Mastabort by The Baitor March 19, 2025