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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Top Definition
When the catalyic converter is taking out of the car to reduce back pressure and increase performance. It is illegal though, only if u get caught. it would be hard and almost impossilbe to pass smog check also
Dam ur car stinks, is it running a straight pipe?

Im running a 3 inch down straight pipe wiht a racing cat back system yo. word
by Thomas Van February 24, 2005

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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 17, 2008

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The act of doing a female without a condom
I gave your mom the ole straight pipe last night
by Dunbar Fuckowski March 28, 2006

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When you fart with no underwear on. nothing to muffle the sound.
One night me and my girlfriend were doing 69,and with no warning, the loudest straight pipe I ever heard.
by Pete the Plummer February 08, 2004

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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