Used in conjunction with Motherfucker. A term for a nut who wanks. Frequently. Often used as derogatory. However, in extreme circumstances can be a compliment.
Noun. Person of questionable intelligence who appears to be crazy or unaware or both, usually existing in the outskirts of society; different in a way that indicates insanity. Used in civil conversation, the word can be either negative or positive depending on the context. It is similar to the word "weirdo."
That guy is a complete whacknut for attempting to jump a valley on a dirt bike without ever having ridden one before.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"