1 definition by threonine

Top Definition
The residue left on bed linens after a man ejaculates, cleans up the bulk of the semen, and then sleeps naked, allowing the remaining liquid occupying the dead volume of his reproductive organs to leak out slowly. The man's flaccid penis is then remarkably analogous to a slug, leaving ooze trails as it squirms about.
WOMAN: "You were amazing. Come cuddle with me, stud."
MAN: "Just a second, let me put my boxers back on, I don't want to leave slug trails all over your Egyptian cotton sheets."
by threonine June 22, 2011

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