Granny Gold refers to late model sedans and SUVs in the shade of metallic gold, enhancing the vehicles visual appeal. Many folks recall their grandmother driving a gold color car and its been affectionately dubbed "granny gold". Camrys, Accords, Tahoes, and Buicks are the usual suspects.
Person 1: Hey check out the car that my grandma handed down to me!
Person 2: Nice! And its in Granny Gold too!
"Ebaydm" is when a person purchases most, if not all, their performance parts from ebay. Its a play on the acronym JDM which means Japanese Domestic Market.
them: Hey those are some nice rim. Where did you buy them?
you: On ebay
them: ebaydm?
you: Yessir!!