A "Sphincter Soak" -(noun or adjective) is someone's significant other, fuck buddy, mistress or mister.
In more adventurous circles a "Sphincter Soak" may refer to less sentient beings i.e members of the animal kingdom and/or vegetables.
- Verb
To Sphincter Soak
- Where's Lex?"
- I don't know she had been spending a lot of time with her Sphincter Soak.
-Is this dinner or Ivan's Sphincter Soak?
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