Entry 3 senses · 2 variants Webster, 1913 Whimsey · Whim·sey · IPA n. v. t. 01 n. A whim; a freak; a capricious notion, a fanciful or odd conceit. pl. Whimseys, Whimsies ((#)) 1. A whim; a freak; a capricious notion, a fanciful or odd conceit. “Men's folly, whimsies, and inconstancy.” — Swift. “Mistaking the whimseys of a feverish brain for the calm revelation of truth.” — Bancroft. 2. A whim.(Mining) 02 v. t. To fill with whimseys, or whims; to make fantastic; to craze. 1. To fill with whimseys, or whims; to make fantastic; to craze.[R.] “To have a man's brain whimsied with his wealth.” — J. Fletcher.