One who masturbates.
Tomtheloser is a mastur, although you’d be lucky to catch him admitting it.
mastur: define #2
One who takes great pleasure in giving themselves great pleasure.
I am a mastur. But then again, so are you.
mastur: define #3
One who has mastered the holy act of Masturbating.
dude, Jimmy is such a mastur
yah i know, i’m his roomate