by candyonfire April 18, 2016
Used when someone does/plans/talks about something a bit crazy. A lengthened version would be "What drug are you taking, to be high enough to do that". "What are you on" is usually followed up with "Do you want a list?" even if that person is not under the influence of drugs. N.B Used in Britain, less in America
Friend 1 : "I'm gonna jump off that cliff"
Friend 2 : "What are you on?"
Friend 1 : "Do you want a list?"
Friend 2 : "What are you on?"
Friend 1 : "Do you want a list?"
by TheRealPseudonym June 17, 2014
by bigbenny69 October 07, 2014
by Googleinfo February 23, 2015
Originated in the ghetto streets of High Wycombe, England. Upon being insulted with the usual derogotory profanities, the person would then reply with this phrase. Making the person whol insulted you, think about what indeed are they. Realising they are nothing, this insult usually wins....
Colin: "you know, you really are a cock!"
Alger: "really?"
Colin: "yeh, and your gay!"
Alger: "really? well tehn what are you?"
Alger: "really?"
Colin: "yeh, and your gay!"
Alger: "really? well tehn what are you?"
by Alger Barington December 31, 2004