Top definition
When you walk up to someone, take their drink, with or without their knowledge, and drink a significant portion of it.
Frat Boy: "Is that your pint?"

Drunk Sorority Girl: "Yes."

*Frat Boy grabs her drink, swallows a significant portion of it (Irish Gulp), and then hands it back to her.
Drunk Sorority Girl: "Wow, you are such an ass hole. I think I love you."
by February 05, 2012
Get the mug
Get a Irish Gulp mug for your barber Paul.