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a 69 rimmer is when you are in the 69 position and you go one step further and both like each others butthole identical to the lacross toss but better sounding and less homosexual sounding.
"hey did you hear the rumors? i heard that karl performed a 69 rimmer on daniel last night and he was so wasted that he thought it was his girlfriend"
by blb44 September 04, 2009
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