Creff is a Cincinnati area word that can be used for just about anything; a very flexible word, cref can mean a friend, an event that just happened, or simply an interjection. Cref is whatever the mind that says it dreams it to be.
"Yo, what up, creff!"
"Can I creff a dollar from you?"
"Most creffinitely, homie."
"Creff that shit!"
"Can I creff a dollar from you?"
"Most creffinitely, homie."
"Creff that shit!"
by Dave Fausz March 24, 2006