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1. A person who is so stupid that they will obviously die of misadventure rather than old age.

2. An act performed by a person that is so stupid that the only way to survive is by an act of god.
1. "Johnny is wanting to jump out of an airplane without a parachute and land in a hay stack. Man, he is terminally stupid!"

2 "Billy tried to jump over a moving car. He's in intensive care now. That was a terminally stupid thing to try."
by Coyote628 September 07, 2013
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