Top Definition
When a person fails to achieve in a sporting event that they have dominated.

When a person loses a sporting event based upon they're own mistakes.
Person 1: I've got this in the bag! No chance anyone can beat me.

*Person fails to win*

Group: He Ambrosed It!

Person 1 is dominating a race, person one crashes on last lap of race to lose. The said person has, "Ambrosed It"
by AirborneRedneck July 14, 2010

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