The act of engaging in useless yet intellectually stimulating conversation, usually as an excuse to avoid taking constructive action in your life.
Guy 1: "If only I had taken Cindy to my high school prom, I could have fucked her instead of that loser Jeff and then now she would be my girlfriend."
Guy 2: "Dude, stop that mental masturbation right now and go out and meet a new girl!"
The Jamaican patois word for "ghost".
Ah mi a big man, me nuh fear nuh duppy.