Ah Fuck, I Can't Believe You've Done This.
A statement of frustration said when one is about to say something and is interrupted
abruptly; usually with a
punch to the face.
Note: It has to be said in a non-enthusiastic,
brittish, calm and polite manner, if you will.
Example:
Some guy: "Hello everyone, i'm here today to talk about... *
PUNCHED IN THE FACE*
Same guy: "
Ah fuck,
I can't believe you've done this."