This figurative usage as appearing in the Oxford English Dictionary is a meaningful explanation of “double down” other than the ubiquitous “to double the wager in exchange for only one additional card in Blackjack gambit” in every online dictionary.
It is the time to double down on the commitment of solar energy, rather than to scale back
HP is going to double down on Palm’s webOS
2. In blackjack, to double your current bet at your turn, in return for which you get one more card and then no more. In what situations this is allowed and/or advicable varies somewhat depending on the casino, but if no card counting is done, it's usually a good move on all hands totaling 11 and some totaling 10.
11 to the dealers 6? Double down, no question.
Named for the likeness to the KFC sandwich, i.e. salty, cheese, and all meat.
Stephanie didn't just go down on him; she went double-down.
Man, I could really go for a double down right about now.
The "Double-Down" has no lyrics just "da da da da Double-Down". But surprisingly, when song with different pitches, tones and beats at certain times, the "Double-Down" is very entertaining.
In the future BIG D is gonna make a tight dance to go along with the "Double-Down" and bust some more verses for his song.
The "Double-Down" is a must hear whenever you are in Chi-Town.
Hey Walter I just heard the "Double-Down" by BIG D!!
Pop, crack, snap and jangle! the "Double-Down" by BIG D is my favorite song!!