Definition of "why-not" [why•-not]

• A violent and peremptory procedure without any assigned reason; a sudden conclusive happening. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "Granville was raising his fine brows in a why-not fashion."
• "Nonetheless, when it's all over, I want to bite the apple and become an American again, and help create the why-not part, as an investor in private space travel."
• "Ms. Cullen, who works in real estate and lives in Park Slope, was thrilled when her why-not purchase all of a sudden showed up at all the non-discount stores."