"It's phony, goddamn it but mysto and after a while it starts to infect you, like an itch, the roseola." p.19 of The Electric Kool-Aid Acid Test, by Tom Wolfe.

“I’m tired I wanna go home”

“Oh I didn’t know it was pee pee poo poo hours”

That's so mysto

Ted has gone mysto on us ever since he started coaching his kids. Hope he pops up for a beer some day.

Matt: "Yo dude, did you try some of that trippy acid?"
Pete: "Yeah man, it was mysto, dig?"

That fella is a real mysto, oh wait, it's not a fella at all.

It was mysto why there wasn't a definition on Urban Dictionary for "mysto," so I made one, immediately after some dumbass on Slate said there wasn't one, rather than just making one himself.