When a bunch of guys jackoff into a glass and a sexy slut swallows it after stirring it.
I can't believe that Chrissy drank that cum milkshake. Must have a been 20 ounces of jizz.
by blowmenow February 04, 2008
1 more definition
After having anal sex with a male or female. The male ejaculates into the anal crack and as your partner is moaning in acceptance you slurp all of the ejaculation out of the anal crack.
Okay honey I will now preform the cum milkshake on you.
by Harold Li July 31, 2008