A Midnight Bun Run is a trip in the middle of the night one would make to a location to join another in sexual activity.
Mark-"How was last night?"
Joey-"Dude it was awesome, I went on a midnight bun run to Sheila's house!"
Mark-"Dude, awesome!!!"
Joey-"Dude it was awesome, I went on a midnight bun run to Sheila's house!"
Mark-"Dude, awesome!!!"
by erudd287 May 22, 2010
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