A seemingly discrete way your friend hides his pot.
Brian knew Danielle was up to something when he saw a bottle of milk thistle in her dad's ass.
by Cuz December 14, 2004
1 more definition
The end of the penis where ejaculate appears to drip from after a man finishes is called a milk thistle.
A friend of mine recommended I give Julia a go, as he was quite impressed by the work she did last night on his milk thistle.
by whinoleum April 23, 2011