A word used by the chronically ill and/or invisible illness community to refer to people who are diagnosed with a mast cell disorder - generally either Mast Cell Activation Syndrome (MCAS) or mastocytosis. "Mastie" is a cute name to refer to the person diagnosed with the condition. It's shortened for easier usage.
by VocalContributer October 7, 2019
by cheddarcheese101 December 15, 2016
A shortened version of Masturbation
by Invaderzim44 March 26, 2010
Noun. The act of male masturbation; a jerk-off. Generally used within the phrase "have a mastie" or "having a mastie"
After he realized that he wasn't going to get laid that night, he decided to have a mastie and go to sleep.
by Ms. Robinson August 27, 2006
Verb originating from the noun masturbation. Used as slang in small parts of South-East England such as Harwich. Means the same as wank; jerking it; jacking off etc
wank masturbation jerking off jacking off
wank masturbation jerking off jacking off
Our mate Tango was rustling in the night, I could have sworn he was having a masty so now he's known as Masty Tango
by MastyTango March 10, 2016
Noun: the act of masturbation
Verb: to masturbate in the absence/or for the replacement of real sex (not to be used by those who are getting the real "nasty" because it's just not fair for them to be both entertaining and gettin' some)
Verb: to masturbate in the absence/or for the replacement of real sex (not to be used by those who are getting the real "nasty" because it's just not fair for them to be both entertaining and gettin' some)
Noun: I love to do the masty
Verb: I got all masty with myself last night and it was niiiiiicccceee....
Verb: I got all masty with myself last night and it was niiiiiicccceee....
by Bisco G August 16, 2009