Someone that has bad posture or a hunched back that curves in weird ways like a potato.
Wow, Vlad your friend Roee is so cute can I get his number? Just so you know he is a potato back. Oh, nevermind then *proceeds to go vape in the bathroom*
When you don't properly wipe your ass and leave residue behind.
Before I stuck it in her butt, I had to check and see if she had back snacks.
Splatty back when spooning and there's alot of pre cum
Awh babe you gave me splatty back
E snow
Look at that nigga paul he a back in a breezy typa nigga
When you are a a bar or event and after shooting liquor, you realize that you did not wash your face from the prior night cunnilingus on a female.
Derrek was at the bar and realized he had tasted the beard back in his shot and it was a bit crusty.
When you nut in a girls mouth and then proceed to make her spit the nut into your hand you may then smack her with the nut
Ashley just came out of the room with a red face covered in nut! Conner must have given her “The cash back”
When a fat person has rolls on their lower back that form 3 rows on each side, resembling a muscular abdominal six-pack.
Check out the rolls on that fat guy! He has a six-back!