Although there is only one of these in the world, it is like nothing whatever have ever seen before. With pudgy cheeks and a horrific odor, this creature roams around his hometown with his best friend. Going to movies together is their favorite activity. A slop boi thinks he is cool but his so-called "friends" use him for his gigantic phone. His upper lip repels any femal creature and when he jumps into the water, he slops. If you see this creature, please call 1(800)SLOP-BOI
by OnTheHunt April 13, 2015

When having sex, one person poops out extremely slimy mucus slop on to the other’s pubic hair. The person who delivered the slop then sucks it out of the other’s pubic hair, thus becoming a slop sucker.
by Buttslopper-oo September 7, 2019

The act of receiving a handy, lubricated with the spit of someone who just gave sloppy top to someone else. E.g. She blows guy one; guy two is given a handjob with her spit off of guy one’s cock.
“hey bro! did you get top from Amanda last night at the party?”
“no. she blew David last night, but he was nice enough to give me secondhand slop so at least i got that going for me.”
“no. she blew David last night, but he was nice enough to give me secondhand slop so at least i got that going for me.”
by bigb00tyr3dhead January 22, 2024
