Keister

[Couch Potatoe]

Buttocks, heinie, your arse.

[Little_Girl]

to conceal an object in ones rectum.

[Jessica]

what you need to get up off of...

bulbous enclosure of fat located at the back of the bus, can be used as a floatation device in the event of an emergency.

[Sarah]

vi/vt. To hide contraband in ones anus.

n. One who hides contraband in his anus.

[Mark Zuckerberg]

keis·ter

Pronunciation: kEs-t

[Becky]

(also keester, keyster, kiester, or kister)

the buttocks

a suitcase that opens up into a display of goods

a rear pants pocket

a safe

[Jessica]

Use the lower portion of your digestive system as a storage bin for contraband

[Mark Zuckerberg]

To inject alcohol into your anus to bypass the liver to get drunk.

[Dave Paprocki]

A persons buttocks.