Kentucky Seatbelt

When you tie your friend's exquisite beard around your waist so he can't get away whilst you skull fuck him.

Oh, I went to Josh's last night and gave him the 'ole Kentucky Seatbelt... whilst his Grandma watched!

russian seatbelt

Putting your legs over another person's lap when on a bus or other unsafe vehicle that does not possess seatbelts. Usually done for somebody sitting on the seat closest to the aisle. Though it relays a sense of security, this action probably causes more loss than gain of safety.

1 *in a bus, on a bumpy road*
Jess: Holy crap, I feel like I'm gonna fall out!
Sarah: Russian seatbelt?
Jess: Russian seatbelt.

2
Owen: Um... What are you doing? (referring to odd leg positioning)
Reese: Dimmock, the seatbelts've been ripped out by some idiot.
Bob: Russian seatbelting is the only way I'm able to keep him from jumping out from fear of going through the windscreen.

seatbelt volunteer

Lesbians strapped up.

But more specifically, one sits on the other’s lap in a chair, both facing each other. The one on top places one arm on the arm rest of the chair, holding on, and places the other arm on a wall, therefore acting like a seatbelt

Ex:

“You need a seatbelt volunteer?”
“Now she’s smiling ear to ear”