Dirty Hanky
When a person blow thier nose in another person's butt and then uses said snot as lube for anal sex.
We didn't have any lube for anal sex so I gave them a Dirty Hanky and it was as slick as snot and never felt better.
Dirty Hanky
The act of expectorating a large mucosal mass onto the face of your partner, then proceeding to use your ass cheeks to ensure even distribution, while pleasuring your bung hole with your partners nose.
That girl I met at the hospital is a freak! I bet she loves a dirty hanky.