You really shoulda doubled down, man

The point at which a known and confirmed douche bag commits an act so douchy that it doubles the d-bags status, thus 'doubling down'.

The New Jersey Double Down is a special fetish maneuver that roughly involves taking a KFC double down and putting it into a woman's vagina, typically followed up by a good ole fuckin'. The term "New Jersey" originated from a lesser known, but crucial additional practice that involves "Double Down'" the female who has recieved the KFC Double Down. In New Jersey, you see, good old white boys, when bored, would fuck any girl that moves including the delicious KFC double down (Which your life fully sucks when you dont try it so stop reading this and go to Kentucky Fried Chicken right now and try it instead of wasting your pointless lives) To properly perform the New Jersey Double Down follow-up procedure, one must take a nice fresh hot KFC double down onto the vagina WITHOUT spreading the lips. This creates a core that enters the woman, and then dregs the colonel sauce in which that explode out all over her (including her nipples). By randomly stabbing with the cock, one will successfully New Jersey Double Downing the girl... repeating, naturally.

The Double Dick Down Method (DDDM), is when the man in the relationship wears a strap-on above his dick and proceeds to have both anal and vaginal sex at the same time.

The act of defecating in the upper tank of a toilet after the consumption and digestion of a "Double Down" sandwich from Kentucky Fried Chicken.

When something sucks major ass, or is not cool.

When two players in the game of halo simultaneously melee each other resulting in the death of both players.