It is when your dick flings out of your pants and lands inside a women's vagina.
I took out my dick and it plopped into my girlfriend's pussy.
A plop plop is a poo. This is name originates from the sound that a poo makes when it falls into the toilet. Plop plop smells really bad.
I just did a big brown plop plop on your momma's face!
A type of rectal excretion that leaves the body with great force, excessive gaseousness, and copious amounts of fecal liquids.
That hot sauce really messed me up! First thing the next morning, I hit the toilet with a harsh case of the plops.
The sound one makes when one drops a ploppy-poo into a body of water.
Heave... heave... PLOP! Ahhh...
The act of "plopping" one's dick upon the lover or desired ones head, therefore creating heavy sexual tension and presenting your junk in a romantic manner.
"The bitch said I had to be more romantic so I gave her the plop."