Similar to an "Irish Exit", the Costello Cut-out involves leaving a party or social gathering without saying goodbye, but shuffling your feet on the way out.
Gary : Hey where did Johnny Boy go?
Mike : I don't know, he was just here laughing and having fun. Then he disappeared.
--30 minutes later--
Gary : I think he gave us the Costello Cut-out.
Mike : Yea, shuffled right out on us.
Mike : I don't know, he was just here laughing and having fun. Then he disappeared.
--30 minutes later--
Gary : I think he gave us the Costello Cut-out.
Mike : Yea, shuffled right out on us.
by Richard Hasherpes December 7, 2013

by Jdidhdheidhd May 13, 2022

by Rovio Int’l October 10, 2021

The action on cutting all relations with someone, by example unfollow them on Twitter, unsubscribe to them on YouTube and stop messaging them or mentionning them. Some may go further and block them from messaging back.
Person 1 : Dude calm the fuck down it's a joke!!
Person 2 : No, you've gone too far this time, you get a cut treatment.
Person 1 : Wait what? What's a cut treatment?
Person 2 : No, you've gone too far this time, you get a cut treatment.
Person 1 : Wait what? What's a cut treatment?
by Sneaky Snitch December 4, 2016

by imtooreal August 10, 2023

The smart cut was coined by Jordan Thomas Cooper in his college years and used recently by Veep writer Emilia Barrosse in a stand-up routine.
by Coop Dupe November 11, 2021

by Evanafex May 20, 2022
