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1)Blow-by occurs when the explosion in your engine's combustion chamber causes fuel, air and moisture to be forced past the rings into the crankcase. Your engine's rings must maintain an excellent fit in order to contain the pressure.

2) Blow-by also occurs when somebody who REALLY needs to take a dump lets loose a fart so putrid and heinous, that it smells as if he just crapped his pants.
Daaaaamn Shecky! *cough* Judging from the stain on your trou, that wasn't mere blow-by.
blow-by by sophistiKate September 9, 2011
Related Words
The act of Farting while receiving fellatio.

Note; Blumpkin overrule blowing toad due to solid pieces of excrement being involved.
Dude i got this hot girl to go down on me, but then i dropped a blow toad. It ruined the night.
Blow Toad by thetoadanator December 28, 2011

Blow Dry 

To inhale deeply then vehemently(strongly) blow in to a woman's open vaginal cavity or ass hole while she is aroused or wet.
Guy: Yo man I gave Karen a Blow Dry last night son.

Friend: No f#%king way!

Guy: Yeah man the bitch didn't suck me but thought I was gonna eat her out, so I was like, "f$#k that!" and just inhaled an blew mad hard in her pussy.

Friend: Hey, at least someone got a "blow job". (lol)

Guy:STFU
Blow Dry by Scrub McRandom July 27, 2011

Blow Job 

1. Oral Sex (most common usage)
2. Slang for Suicide [Bomber]
Al Fukuldick joined the Jihadist [terrorist] group after being offered a free "blow job". but instead of oral sex, he got blown up.
Blow Job by FDT4ever February 8, 2015

Blow Bag 

A girl who likes taking loads of semen inside her
Hey that chick is such a blow bag.. she loved it when i blew inside her
Blow Bag by shamous May 31, 2004
1. career-to have one's career success increase exponentially in a short time
2. bathroom-to extremely forcefully expulse log or vom.
3. regular-to cause an object to explode
4. regular-to inflate something
5. adj.-something inflatable
1. When Less than Jake made their album Pezcore, they blew up pretty fast.
2. I sprinted to the bathroom and hardly had sat down when I blew up.
3. "AH BLOWSH STUFF UP AN' IT GOESH BOOOOOM!!!!"
4/5. He blew up his blow-up doll.
blow up by Fugerko.? December 26, 2003