Orginally a childrens television programme , the word has now been adopted as a form of negative Scottish slang. It can be used as in isult or as a negative term to describe someone/something.
Girl 1: Who's that ? Did you invite him to the party?
Girl 2: I have no idea who he is , he's just turned up.
Girl 1: I hate gatecrashers , he's such a chuggington.
The act of stabbing one’s flaccid penis in the tip with a fork of any kind, and snaking it up another’s ass hole; then proceeding to get and erection and killing the other person via internal explosion of blood from the penis.
The whore was likely killed by butt chunging when the man left with from the bar last night.