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1.
Something uttered by British people after they've been suckered punched. Usually preceded by the exclamation "Aw fuck", and accompanied by a look of complete bewilderment.
British guy: Blah Blah Blah Blah
British guy's friend: *punches British guy in the face*
British guy: "Aw FUCK, I can't believe you've done this!"
by Susake November 08, 2007
248 74
 
2.
the new meme, originating from the infamous youtube video

http://youtube.com/watch?v=8lBO23Dh23I
pete: hey, say thanks to your mum for me
sam: aw fuck, i can't believe you've done this
by cuilo January 03, 2008
24 9