Gag 'n' Bag 

An expression used to describe someone that you find physically attractive (enough to have sex with) but otherwise find replusive. Stems from the idea of gagging the person so that you can't hear the crap that comes out of their mouth, in order to increase your sense of pleasure when bagging (or sleeping with) them.

Kurtis is an arrogant, manipulative prick; talking to him for more than 5 minutes is overbearing which is too bad since he's such a hottie - he's a total gag 'n' bag.

or

A hot annoying/stupid chick that won't shut up would be considered a gag 'n' bag.

Gag 'n' Bag by Michelle Dubs February 25, 2011

Bag n Gag 

Sexual intercourse with a female with horrificly putrid body odor or a rank as smelly pussy. But despite the less than desirable aromas, you gag your way through it and bag her anyway cause after all, it is a hole.

I did a bag n gag last with that crack whore. Man my wanker smells today.

Bag n Gag by Eaton Holgoode June 3, 2018