n. anus

"up the wazoo" - literal meaning, up one's trapdoor. can also mean an excess, or plentiful supply of

The Wazoo is an animal park in Perth (Short for Western Australia Zoo), which has become so unpopular due to it's poor treatment of animals, that the park has in many means become synonym with shit and arse, as it is some of the worst profanities known to Australians.

Famous mascots; Peter the paraplegic platypus, Ike the inbred iguana and Casper the rotting kangaroo corpse in front of the entrance.

The zoo is also known for it's inbred hairy dogs, the Shit Zoo dogs (Australian spelling: Shih Tzu)

One's anal orifice.

your ass
havent you seen over the hedge

Pacific Northwest slang for Washington State University. Origin can be linked to the school's reputation of being a party college.

A self-important person of very little consequence: see esp. the Frank Zappa album "The Grand Wazoo" and the song titled "Cosmik Debris" (I think that spelling is correct).

There is a respectable split among vernacularists whether "wazoo" applies to one's rump or one's porker. Ample weight for both definitions. See the delightful example below for both possible interpretations -- tuchus and ding-dong.