Top Definition
When one attempts to receive the cardboard drink holder from the drive-through window containing four large top-heavy beverages and looses grip, thus resulting in spillage of one or more beverages into one or more passengers' lap.
Berda attempted to receive the tray from the window attendant and spilled all over cody's lap, thus resulting in a McFumble.

Berda McFumbled the drink tray.
by 0dy July 09, 2010
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