Result of switching the "t" and the "b" in the phrase "Big n'
tasty." A term of frustration used when you go to McDonald's or an equivalent fast food restaurant, order something, and the cashier or person behind the drive-thru
window attempts to repeat what you
said in either unintelligible language or something totally contrary to what you asked for. This is a stupid, yet somewhat gratifying, way to respond.
Employee behind drive-thru
window (speaking in bad microphone): Welcome to McDonald's. May I help you?
Me: Yes. I would like a large #2, diet coke, and some
cookies.
Employee: Mehdoodootmokoonbakh?
Me: WHAT?!
Employee: Meh-doo-doot-mok-oon-bakh?
Me: Yeah
fool. I want a tiggenbasty!
Employee: Huh?
Me: Exactly.