I'd suck a fart out of that
A backhanded compliment saying a woman’s butt is so big it could make a dead man come back just to take a sniff.
My aunt said that to my cousin after she walked into a room wearing a skirt.
He texted her: 'I’d suck a fart out of that if it had a heartbeat.'
At the gym, a guy yelled it at a woman lifting weights like she was trying to break the world record.