A soon to be former mate, pending the obligatory legal proceedings.
My yet to be ex wife refused to sign the divorce papers because she found out her sister had moved into the single wide.
The excess application of any personal lubricant (KY Jelly, AstroGlide, Crisco, etc) to the genitalia during any sexual relation or act.
Fred said, "Damnit Ethel !! You put too much Pam on Mr. Happy again. It's too slippery. You have overlubricated him again you ignorant slut. Where is Lucy?"