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!"
Harmful , undesirable behavior or action that’s looked down upon in society. It’s associated with immorality.
The way he talks about gay people is diabolical.
The scale of how diabolical a person can be
You underestimate my Diabolibility
a very, very well paying and rewarding item that one steals from a place
Bartholomew: dude check this shit out, fully working soap dispenser taken straight from the school bathroom
Humphrey II Jr.: dude that's diabolical lick holy shit
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
Someone who's evil and cruel but in a hilarious way, so you can't help but laugh and not be mad at them.
That child is so hilariously diabolical, I can't punish them.