Someone who preps a professional considerably before they must give a performance. It is not just regular preparation, but a stong urging, above and beyond, meant to convince the performer and the audience that it was delivered solely by the performer on his own.
"What a great speech by Bush...However, given the content everybody knows that Cheney was his fluffer"
by Laverty March 03, 2010
Pornographic film industry employee who is responsible for keeping male performers aroused (usually via oral sex) between takes during a shoot.
Dammit, the lighting's all wrong, we gotta change it. This will only be a couple minutes; have the fluffer work on Jeff to keep him ready.
by MeanDean May 15, 2005