"Hilaristurbing" (adj) used to describe something that is both HILARious and dISTURBING.
It's origin is from an online story written by Alexandra Erin called "Tales of MU".
In the story - an adventurous nymph named Amaranth describes her attempt to teach a horse to count with the intent to avoid her deity's prohibition against lying with unintelligent beings. Chapter 60 - Leather
“Hey, I just discovered a new adjective,” Steff said. “‘Hilaristurbing’.” She turned to me. “I think Amaranth has exited the dungeon, hon…”
An adjective defining an instance where something is so funny it needs a rhyming catch phrase.
"Hey did you see that new movie? That shit was hilarium aquarium." "Did you see when that girl tripped while wearing those tall stilettos? Yeah bro, totally hilarium aquarium"
The point in Dave Chappelle's "Black White-Supremasist" skit, when his character Clayton Bigsby removes his hood, and the dude in the back row...his head literally explodes...then Clayton offers everyone refershments....that is the absolute HILARIUM of life.