When you have taken on a race against a thought-to-be lesser opponent, and said opponent proceeds to acquire large amounts of distance from you, thus knocking you down a few pegs.
When a civic si revs at your dodge charger at a red light and you proceed to walk by his much lighter vehicle with your heavy 4 door racecar.
The act of facing down, gripping your asshole open while a minimum of 3 men compete to masturbate and fire their load into your gaping hole. The one who wins is the Gaping Meat Dragon.