The combination of a "rusty trombone" and a "cincinnati bowtie" i.e. a reverse titty-fuck coupled with a rimjob.

When a man cleveland steamers just above a woman's breasts (takes a giant poop) and then proceeds to sit down on the dump and spread it out with his buttcheeks...resulting in a bow-tie shaped poop stain on the woman. Make sure to have clorox wipes available immediately after the smear to clean your ass with. More than likely you won't have those wipes with you because if you are sick enough to do this, you don't worry about cleanliness

A 12 guy train bang in a womans ass. With every man wearing a bow-tie on his penis. The woman unloads the cum from her ass into a glass, then drinks it.

To slice someone's throat from ear to ear

a grotesque sleeping position in which your boobs and your butt touch the matress at the same time

When a guy hovers over a girl and smacks his balls into her neck over and over until it leaves small bruise marks looking like a bowtie.

This is when a woman of larger size touches their chin to their chest. Then the man proceedes to spit into this cavity and immediately starts to fuck beneath her chin until climax.
Hence, leaving her with THE CINNCINATI BOWTIE