Definitions by Geno H

Reverse Urination 

To re-nig on previously stated information
To go back on your word
Synonym: piss backwards

Boss: We're losing our ass on this job! You need to
ask for more money.
Salesman: But it's a quoted job.
Boss: Then you'll need to do a little reverse urination...

Reverse Urination by Geno H May 16, 2008