The word reggin comes from the word "Nigger" spelled backwards. Less offensive word to use around people of color when trying to be racist or make prejudice remarks without getting ones ass beaten in like it aint funny. Word not to be used at the work place.
Oh fuck Tim, check out that fuckin reggin mother fucker! lets go fuckin shoot that fucker!
Stop being a reggin Grey Dane, you are such a fucking fagget. Bitch.