n.1.A violent and peremptory procedure without any assigned reason; a sudden conclusive happening.
When the church
Was taken with a why-not in the lurch.
- Hudibras.
This game . . . was like to have been lost with a why-not.
- Nugæ Antiq.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.