What is Ritz Cracker?
1.
White trash who stay at nice hotels, usually ruining a good time for anyone else staying there.
"Oh crap... here comes a rusty minivan with five kids and a basset hound, must be more ritz crackers."
See
2.
(n.) A synonym for the biggest white guy alive
Johnny: This is preposterous!
Timmy: DUDE SHUTUP YOU SOUND LIKE A RITZ CRACKER