Short for shove it up your ass. If your not using it as an insult, your an idiot

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.

An expression used in return to an action or comment that was offensive. It is referring to something being stuck up the other person's butthole.

Equivalent to "go to hell", "fuck off", etc.

-another way of telling someone to shut up or telling them to fuck off

The most INFAMOUS definition of the commonly used word up (↑).
Means shove it up your ass or worse, using only innocent words - it is EQUIVALENT to fuck you!

If you are not using this as an insult, you are a stupid fucking idiot who cannot even count! Hahahahahaha!

rude response to a question or comment that really pissed you off.