[moon-kaf, -kahf]

noun, plural moon·calves.

a congenitally grossly deformed and mentally defective person.
a foolish person.
a person who spends time idly daydreaming.

Nearby words

  1. moon-shot,
  2. moon-up,
  3. moonball,
  4. moonbeam,
  5. moonbow,
  6. moonchild,
  7. mooned,
  8. mooneye,
  9. moonfish,
  10. moonflower

Origin of mooncalf

First recorded in 1555–65; moon + calf1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for moon-calf

British Dictionary definitions for moon-calf


noun plural -calves (-ˌkɑːvz)

a born fool; dolt
a person who idles time away
obsolete a freak or monster
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for moon-calf



also mooncalf, "abortive, shapeless, fleshy mass," 1560s, attributed to the influence of the moon; from moon (n.) + calf (n.). In later 16c., "deformed creature, monster."

Online Etymology Dictionary, © 2010 Douglas Harper