Pulling a Winston

Being sick on a girls vagina during intercourse due to alcohol. Became famous during the 2014's Big Brother UK series due to housemate Winston Showan.

Person 1: "Oh my god! Was with this bird last night and I was sick all over her lady parts. She'll never see me again."
Person 2: "Bloody hell man not again. That's called Pulling a Winston that is."
Person 1: "It's because I drunk too much."