Spit Floss
When one get rids of scraps of food between their teeth by pushing saliva through the spaces between their teeth. Very useful when one runs out of dental floss.
James: Shit, I'm out of dental floss
Kyle: Ouch, you wanna borrow mine?
James: Nah, it's cool I'll just spit floss
Kyle: Ouch, you wanna borrow mine?
James: Nah, it's cool I'll just spit floss