blow back

To blow the smoke from a joint from one persons mouth into anothers.

(noun) In a convertible it's the (somewhat surprising) way the air blows from the back of the car toward the front. Many convertible drivers wear hats to reduce the effects of blow back. Fancy convertible makes such as Mercedes, BMW and Porsche often mount a screen behind the car's front seats to reduce blow back to those passengers.

When you fart into a cushioned chair or seat, get up for something and then sit down again, only to have your weight cause the cushion to blow the offensive odor back into your face.

1.When your IQ is so low that your penis turns on you and it attempts to rip it self from your retarded body by backfiring.

2.Penil suicide...if yours does this that means you should to!!!!

When you're getting a blowjob and you're on the verge of cumming the girl or guy blows the cum back up your cock.

When your girlfriend gives you a blow job at home so hard that cum shoots out so fast that it starts to blow you girlfriend back 10 feet and covers your house.

When urinating after a night of sexy times your cheese helmut redirects your stream back to your pants leg.