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The accumulation of smashed Monarch butterflies on the front of any motorized vehicle. Monarchbutter is a seasonal product with a harvest occuring during the annual migration of Monarch butterflies in South Texas.
<Passenger> Man, I'm starving and I'm broke. Can you buy me something to eat at the next stop?
<Driver> I only have enough money for gas, but I have some bread and jelly in the back. Let's scrape a little monarchbutter off the car and make some sandwiches!
by Mark Shackelford May 10, 2007
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