Two from SC:

"Like white on rice," all over (usually in the sense of punishment - "You do that I'll be on you like white on rice.")

"Case quarter" twenty-five cents in quarter form, as opposed to two dimes and a nickel. No clue what the derivation is.

"Buggy" shopping cart. Somebody asked me to "fetch that buggy" and I looked all over for a baby carriage...