Of, or like a cracker. This can be cracker in the racist or saltine sense and usually connotes a bleached white, if not pearly and reflective, appearance in addition to whatever other characteristic of crackerism is being referenced.
JAYDEN:I hate all the balcks! They all deserve to be slaves. *smokes crack* *blabbers on*
ANNA: YOU'RE ACRACKERY CRACKER WHY SHOULD ANYONE LISTEN TO YOU
JAYDEN: you smell of fish, shut up.