petcock

A small valve or faucet used to drain or reduce pressure, as from a boiler or radiator.

Before you remove that radiator, open the petcock and let it drain.

by Reaper October 13, 2003

petcock

To stroke the cock with a petting motion. This is typically done to make the cock stand alert.

That bitch was trying to get my attention so she pulled the ole petcock and I stood at attention immediately.

by Estes June 25, 2011

Petcock

The sexual act, where two homosexuals use their pet rooster to pleasure each other.

Hey, have you guys tried the petcock? It's great

by Anal_thruster December 21, 2017