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2.
A killer local band from San Antonio, TX.
Jayson: Dude, are you going to see Texas Pistachio Wagon tonight?

Joe: Hell Yeah, the Wagon rocks!
by humdipper May 04, 2009
 
1.
n. slang for the testicular region, particularly when said region is struck violently.
He took one in the Texas Pistachio Wagon.
by gert January 03, 2006