It stands for SHUT THE FUCK UP
by A Boy With A Fat Sister March 18, 2020
Get the STFUmug. Acronym used for the phrase "shut the fuck up" for efficiency reasons, but your REALLY fucking mad. it is mostly used in arguments.
by theSUTmaster July 18, 2020
Get the STFUmug. Guy 1: "hey, stfu!!!"
Guy 2: "Did you just tell me to shut the fuck up"
Guy 1: "No, I've just spotted trade federation units ahead."
Guy 2: "oh ok"
Guy 2: "Did you just tell me to shut the fuck up"
Guy 1: "No, I've just spotted trade federation units ahead."
Guy 2: "oh ok"
by Indominus67 January 31, 2020
Get the STFUmug. by TmacZILLA November 2, 2009
Get the STFUmug. Shortened Version of "Shut the Fuck up!" Used commonly by people in Britan and England, also on such things like AIM, MSN, and Yahoo Messenger.
Literally, they are telling you to bang that girl more quietly, producing less orgasms. Go bang that person who said STFU with a crowbar in the ass.
Literally, they are telling you to bang that girl more quietly, producing less orgasms. Go bang that person who said STFU with a crowbar in the ass.
by W/e March 9, 2005
Get the STFUmug. 
