double dog dare

Etymology
An emphatic extension of, perhaps playing on the alliterative and forceful nature of the word.

Verb

 * 1) * 2003–4, Sarah Dessen, How to Deal (or That Summer, respectively):
 * "She'd do anything if you double dog dared her." "Double dog dared?" I said. "Yeah." She sat up, plunking another stack of pictures into my hands.
 * 1) * 2003–4, Sarah Dessen, How to Deal (or That Summer, respectively):
 * "She'd do anything if you double dog dared her." "Double dog dared?" I said. "Yeah." She sat up, plunking another stack of pictures into my hands.

Noun

 * 1)  An intensified form of a dare, frequently used after the dared person initially refuses.