Sober friend:"Dude, did you see what Dumbnuts just did? HiiiIIIIGH-larious!"
or,
alternative usage:
Trashed friend: "BwahhahahahaHAhurdeehuehurheeehehehehaHAr, that is sooooooo FUuuuurrrnyyyheeheeehehehheeee *hic* lolololol"
Unamused sober friend sarcastically responds with mocking tone: "
Haha, yes, very
funny, Highlarious..."