Put on your condom

to fasten one's seatbelt. The similarities between the two are endless: everyone hates them, they are for protection, not wearing them can be quite risky, and girls never use them.

Steve: Hey, Andrew, put on your condom. This could be a rough ride.

Andrew: Shut up Steve. But I guess I should...

Put on your condom by My Girlfriend's Friend December 17, 2010

put on your condoms 

Another way to say fasten your seatbelts. Seatbelts and condoms are similar : they offer protection, are easy to find, and keep you out of some deeeeeep shit later on.

(getting into the car)
Jane : OK, guys, put on your condoms and grab your oh shit bar!

put on your condoms by Alley L October 17, 2008