1. (Adjective) - Dubious, scandalous, or otherwise brilliantly devilish; descriptive of behavior conducive to an atmosphere of mischief - generally said of lollygaggers, tomfoolerers, jokers, hoaxers, tricksters, jokesmiths, humorists, jesters, hooligans, goofballs, charlatans, scoundrels, rapscallions, miscreants, jokesters, japers, hoodlums, scallywags, clowns, quipsters, harlequins, buffoons, wisecrackers, rascals, neerdowells, rabbel-rousers, shenaniganizers, goofsters, merrymakers, ruffians, skylarkers, goobers, knuckleheads, and other ridiculous men.
Matt: "Eyy big slime, them fools over in room 306 done pulled a prank on our room!"
Big Slime: "We finna get them back. You know what will really teach them a lesson? We should sneak into their room and pour water in the sinks!"
Matt: "Diabolical!"
when something is way too messed up or outta this world
Spongebob: I bet 100 dollars on patrick mahomes to not score a touchdown, the referees helped him score 25 touchdowns
Squidward: nah bruh that's diabolical
Priest: damyum sister kesha that gyatt fatter than honey boo boo on season 2
congregation: hey priest calm down, da fuq? that comment towards sister kesha was straight up diabolical
a term of light hearted and sometimes sarcastic approval when someone announces that they have done something or plan on doing something in the future
Person A: We won the soccer game by spiking the opposing team's water with laxatives!!
Person B: Wow, that's diabolical, my friend.
OR
Person A: I made cookies for elderly people with cancer yesterday.
Person B: You're diabolical.
When someone or something is SO devious that it's making us all degenerates. Like Brainrot but on a mass scale
"Mwhahaha, time to release the wrath of Diabolicalism"-The Evil Bad Guy
A phrase used when something is diabolical
THATS DIABOLICAL
Doin some diabolical shit
Brother Michael diabolating on that board