What is Blow By?
1.
Gas that escapes between the wall of the anus and the poop that needs to come out.
Hey Ralph, you smell that! I have to shit so bad I've got blow-by.
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2.
Similar to drive-bys. However in this case the act is to satisfy an acquaintance by driving by in a 20-inch rimmed car, dropping a 'ho' out and allowing him to suck the acquaintance's cock.
That snoop dogg fellow is capital. I must send my bitches on a blow by
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3.
A burp collected in the mouth and quietly blown into an unsuspecting victim's nose.
After a burning sensation in her nose, The Baub's wife realized that Jr. perpatrated a perfectly-timed blow by. It smelled like a dead and bloated kangaroo stuffed with used baby diapers.
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4.
The jizz that runs out of your chicks mouth and down her chin after a huff because it to much to swallow.
you'll have to clean that blow by up before I'll kiss you
5.
The small amount of wet shit that ends up in male underwear after urinating, usually caused by farting or a relaxed anal sphincter.
Mom: "Goddamit it Sol, look at this blow by in your underwear!"
Son: "Oh fuck you, just do the laundry and shut up."
Mom: "I swear Sol, sometimes I don't think you're my son, or Jewish, or enrolled at Penn."
Son: "Suck my soulja boy, Mama."
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