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when a man has a boner and it sticks straight out instead of pointing up a little. Making a 90 degree angle with ur body and ur boner.
That guys 90 is sticking straight out of his pants.
by Dillin May 19, 2006
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An interstate and one of the longest roads in the U.S. from Boston to Seattle. Nothing for thousands of miles from Western New York State to Central Montana.
90 is very dull to drive if you can stand to 3 or 4 day drive.
by krock1dk@yahoo.com December 08, 2007
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an abbreviation for a unit of speed, the real speed everyone is traveling on the 75-mph highway.
"Woah! He's goin like, 90!"
"Um, we're goin 90 too..."
by Orion January 15, 2004
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