1.) Something you would say to someone to let them know you have a strong sexual attraction towards them.
2.) Something a group of friends share (inside joke)
1.) Just and FYI, my pussy popin.
2.) Gurllll yo pussy popinnnn.
A joke originated in small portuguese communities, made to troll people. It means "I suck cock" in portuguese, though written wrong.
Abraham Lincoln: Hey, say "Euxu Popin To" very fast three times
George Washington: Eu chupo pinto, eu chupo pinto, eu chupo pinto
Abraham Lincoln: lmao