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An individual who derives sexual pleasure from either fisting or inserting objects into the arses of others, or himself.

Also, Reaming, to ream.
Mike selected the most brutal implement from the kitchen drawer, a spiked meat tenderiser, and proceeded to ream Andy mercilessly with it
by James February 03, 2004
one who gives rather than recieves, as opposed to 'reamee'
Jane said she wanted to be on top, but she and Dick both knew Dick was to be the reamer this time.
by remarcus May 01, 2004
these definitions are completley wrong. a reamer is one who eats the assholes of others. dervied from the greek reamus= to eat ass.
jeff is one hot reamer. my ass is on fire.
by the undying zombie March 13, 2008