Paper Seatbelt 

A false sense of security. Used to describe anything that appears to be strong and secure, but in reality is very weak and vunerable.

The built-in firewall settings in Windows XP is like a paper seatbelt. Hackers can find ways to access your computer.

Paper Seatbelt by Vito Cavallo November 3, 2004

Seatbelt  

The act of seatbelting becomes necessary when the penis of the human male becomes erect in public place. The male will place his erect penis underneath his belt to keep it under control and out of sight. It also feels absolutely fantastic.

I was in math class when I started getting hard, but I fuckin' seatbelt -ed that shit.

Seatbelt by HardBonerStiffPenisBallsCockVagina March 10, 2008

Seatbelt It Up 

To "Seatbelt it up" is to tuck a rather awkward boner up into the elastic of your jocks/briefs as to hide it from the general public.

Dave - Oh man I just got a hard on from that girl, what should I do??

Nick - Relax mate, just Seatbelt it up and away you go!

Seatbelt It Up by C-Man-AU March 23, 2011

Seatbeltb00bing 

The act of taking photos of your breasts while wearing the seatbelt.

“Let’s go.
Wait, let me do some seatbeltb00bing first and then we’ll go.”

“Hey, bro did you see that girl’s seatbeltb00bing on Instagram?”

Seatbeltb00bing by TheChecs November 28, 2013

Seatbelt Cleavage 

The placement of the seatbelt between a womans breats while driving. Causing them to be more noticeable

(passenger to driver) Hey bro, check out that seatbelt cleavage!!

Seatbelt Cleavage by Ry79 December 20, 2009

Seatbelt Fairy 

the sound, similar to tinkerbell-like ringing, a car makes alerting the driver that his/her seatbelt has not been fastened yet

Guy 1: "I usually don't buckle up if I know I'm only going to be the car for a second, but the damn seatbelt fairy wouldn't shut up, so I gave in"

Guy 2: "I actually don't mind it, she reminds when I'm danger."

Guy1: "True. Thanks Seatbelt Fairy!"

Seatbelt Fairy by swissarmyshark December 14, 2009

seatbelt enema 

happens primarily during early childhood, but can occur in rare occasions in adulthood; when you hastily hop into the back seat and land the middle of your ass cheeks on the seatbelt, and you feel a pain like no one can describe that takes over your body and a vocal fray/grunt leaves your mouth that you can’t control.

mom: be careful! don’t jump in too quickly you’ll give yourself a seatbelt enema!

seatbelt enema by whoknowswhat456 February 24, 2020