To smoke marijuana in a celebratory/chirping fashion in the face of others who have just lost/are losing to you in a sport/game of any sort.
After we dust you fuckers at street hockey we're going to warm the crust in your face.

and the crowd goes wild.. "WARM THE CRUST... WARM THE CRUST"... as the home team is laying a beat down on the visiting team.
by yabud December 31, 2014
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To get high, from smoking marijuana. Also the act itself of smoking marijuana.
"Last night we warmed up the crust, and then ate nice sandwiches"

"Let's play some PS3 right after we warm up the crust"
by Mattius Bareback February 12, 2009
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