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1.
Any feat, deed, act, action or reaction that a person does that hurts themselves whether intentional or unintentional is a terminal feat.
A man is arrested and makes a statment saying he is not guilty of the crime he is accused of but admits to several others.

Playing basketball and shooting in the wrong hoop.

Playing football and turning the ball over 7 times a game.

These are examples of terminal feats.
by James Zerelle March 05, 2010