1 definition by RoysterHerOften

The slimy, sticky residue left on ones member after engaging in anal sex.

Made up of lube, excrement, sweat and other bodily secretions and in a consistency and quantity that is dependant on the amount and mix of the above and the time and effort put into "blending" them together!
Last night I was pounding away at Natasha's tight little back door, when I finished I pulled out to reveal a thick coating of rectoplasm on my tool. I had to go wash it off as she lay and recovered because she does not like that stuff in her mouth!
by RoysterHerOften September 3, 2011
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