Top Definition
Mastur-bail means leaving a chat, or IM to go masturbate or watch porn.
Chat Room:
"So what was that show about?"
"Nothing. I gotta go do some stuff. Seeya later"
"Uhh... He's totally gonna mastur-bail"
"So what was that show about?"
"Nothing. I gotta go do some stuff. Seeya later"
"Uhh... He's totally gonna mastur-bail"
by spector234
July 23, 2009
