1. The sound of a turd dropped into the toilet water
2. The sound of a tail plug being yanked out of someone's ass
Yo is that a tail? Sick!
*PLOP*
Usually a short statures clown who has shit his pants while sitting on a Whoopi cushion and laughing hysterically. Usually accompanied by a stilt walking clown named snickers
I went to the carny show an saw squeezle plop an snickers
Oh, what a relief it is! (I.e., da bowels-clearing equivalent of Alka-Seltzer.)
"Plop, plop --- whiz, whiz" refers to what hopefully happens soon after you take a laxative --- i.e., you copiously expel lumps of poop in a long series of loud splashes in da toilet-bowl, while also urinating profusely (noisy farting optional); you also supposedly feel much more relaxed and comfortable afterwards, da same as da famous antacid promises.
Luigi's infamous 0 to death combo in the game Super Smash Bros. Ultimate
Commentator: ELEGANT HAS PULLED OFF A PLOP BIFF BOOF BIFF BIFF EEEEEE!!! THIS IS INSANE!!!!!!!!
"poop is alpha plop"
"no, ur alpha plop u silly goose"