Acronym for "Check Your Mail" used on message boards to succinctly informs someone they have e-mail from you.
Hey, Anthony CYM then get back to me.
by Chgointact October 05, 2005
Competition Yellow Mica, the rarest color of an FD, the third generation Mazda RX-7.
I would give my left nut for a low mileage CYM FD
by Notorious Bri March 08, 2006