This term refers to two men who have had sex, and both ejaculated, into the same woman within a 24 hour period.

Purists of the word would add that the woman must not have showered or thoroughly cleaned her vagina between sex with the men.
Yesterday morning, Chalyse had morning sex with Asher and later that day, slept with Adam. I wonder if they know that they're slushy brothers.
by Chop Nuts July 16, 2017
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