1. A tap or valve used to draw off water (or other liquid) from the lowest part of a tank, boiler etc.
2. Someone who happily services your instrument, sloot.
Sometimes when the pressure builds up a man needs his trusty drain cock to relieve it. Services greatly appreciated.
by Dawn Chorus May 4, 2020
Get the Drain cock mug.
A bull dike lesbian. A female (wannabe male) that has a drain in the private parts instead of a spigot.
Hey Jane! How did your date go with Pat the other night? It was going well until I went to grab his dick and he ended up being a drain cock.
by Tennessee Pelt August 2, 2011
Get the drain cock mug.