To hide or smuggle items in ones anus
Goodman figured keistering the dildo would be just the trick to avoid detection by store security
ayon kay KC Is A Knob Gobbler ika-21 ng Abril, 2009
1 more definition
To inject drugs up your or someone else's rectum. Also known as a booty bump. See crystal meth.
Adam came down with a nasty sore in his ass from keistering too much meth all weekend.
ayon kay sonomachris ika-18 ng Setyembre, 2006