To be the most moronic idiot numbskull to ever exist; to commit such a stupid act as to be eligible for committal to a school for the academically unable. Generally used as an insult or label to someone highly lacking in friends or intelligence.
Chad 1: Hey, you see that guy over there?
Chad 2: Who, the one reducing the IQ of the whole street?
Chad 1: Yeah, that guy is such a thorlak.
Chad 2: Who, the one reducing the IQ of the whole street?
Chad 1: Yeah, that guy is such a thorlak.
by Mr.Gaming August 02, 2022

A sex move involving putting one's forearm up their own anus, and shouting "THORLAK" at the top of their lungs.
Oh my God. THORLAK! THORLAK!
by ThorlakEnthusiast September 14, 2020
