The act of doing a female without a condom
I gave your mom the ole straight pipe last night
by Dunbar Fuckowski March 29, 2006
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Straight piping is an aggressive form of deep throat oral sex. This is when a girl lays on her back on a bed (or some other object) and tilts her head back over the edge so her throat is no longer at an angle. In effect, it forms a "straight pipe." Often seen in pornography.
Yo man I banged this girl last night, she was like a pornstar dude! She even let me straight pipe her!
by Dick M. Down March 13, 2008
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Straight pipe no border, expressed more commonly in its abbreviated form, "SPNB".

Defined as the absence of the typical male contraceptive (Condom) during coitus.

In more general senses, can be used to delineate the use of a straight exhaust system on a motor vehicle.
I porked a total nade Straight Pipe No Border last night! I need to get checked out asap!
by Bottle_o_Beer September 22, 2010
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Removing a catalytic converter from a car in order to make it sound faster than it is. Can land you with a Section 59 if the police check under the car.
“That car behind me is deafening, is it an AMG?”

Nah bro, just another idiot who decided to straight pipe his golf.”
by 3Serie March 21, 2023
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The action of taking a girl and shoving her torso in the truck of a vehicle. Proceed to blow her back out, and at the moment of climax, yank out ur dong and shove it into her asshole.
I did that thing you told me to try with my girl last night, it had her screaming like a Colombian Straight Pipe
by DomDaddyyyy April 4, 2021
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