look up any word, like b4nny:
 
1.
CYM
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
 
2.
CYM
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