What is Hilarious?
1.
Quite funny. Generally used when making fun, or talking about making fun of other people.
Ben H's face is hilariously ugly.
Wasn't it hilarious when Ben H's mom slapped him for being so ugly?
2.
funnier than the norm. in fact, funnier than just plain olde 'hilarious,' because you took the time to capitalise the letters L-A-R to emphasise the second syllable.
pronounced: hill LAAAR ee us
did you see the new cheat commandos? the one with 'commandos in the classroom?' it's hiLARious.
See