An open-faced sandwich is when you fart while wearing no pants, boxers, or underwear, so being bare, naked, or nude, and you can smell it from a far distance away, like from another room.
I made an open-faced sandwich, and my brother screamed when he smelled it in the other room.
The female version of teabagging. The naked vagina goes right on a person's nose.
The name originates from the appearance of some vaginas.
Person A: Oh shit that dude is passed the fuck out. Someone should teabag him.
Person B: Fuck that, someone go get that drunk girl to give him a nice big open faced sandwich.
When a women leaves her used Maxi pad on top of a trash can (usually in a bathroom) for everyone to see.
Clem saw an open faced sandwich in Cecile's bathroom trash can today, vomiting ensued quickly thereafter.
Sexual maneuver where the female is positioned in a split on the ground, pelvis facing skyward.
The male squats over her and defecates upon her vulva, creating an "open faced sandwich".
Damn, this girl wanted an Open Faced Sandwich on the first date? Marriage. Material.
While having sex with a woman (either vaginally or anally), the man uses a dildo on the other available orifice, producing the feel of a sandwich, without the extra man involved.
My girlfriend wanted a threesome with another guy, but I told her I'd just give her an open faced sandwich.