An area of the male body encompassing both the penis and testicles. First used in Kick-Ass #6, written by Mark Millar.
I had sex for two hours and now my whole tunk is aching.
1. One who makes one's self laugh, or a person who laughs at their own jokes.
2. A person who is turned-on by their own laughter.
If only Steve were as funny as he thinks he is; he's quite the laughterbater.