A mixture of chewed up Skittles in the mouth to make a rainbow-like paste. This usually occurs after eating a couple of skittles and just chewing them.
I don't FUCKING KNOW!
Dude 1: Dude you have Rainbow Paste in your mouth lmao
Dude 2: Fucc u mean Ni🅱️🅱️a?
Dude 1: A BUNCH OF CHEWED UP SKITTLES YOU DUMBNUT
Liquid that emerges from someone's foot
Sally has been sent to the doctor with a case of Shoe paste.
When someone's face is exactly the same in every one of their photos/selfies they have a "copy-paste face". It's as if someone cut out their face from one photo and pasted it in every other photo.
Barb: look at my photos from my vacation in Vegas, Sharon! I had so much fun.
Sharon: *looks at photos* I'm sorry to tell ya, Barb. But you have a copy-paste face. You look exactly the same in every photo!