English

edit

Etymology

edit

yuck +‎ -o

Interjection

edit

yucko

  1. (informal) Yuck; yucky.
    • 2013, Savannah Rain, Shattered Family:
      The diet food gets at me—yucko! No sugar, no fat, zero calories whenever possible. Ugh!

Adjective

edit

yucko (not comparable)

  1. (informal) Yuck; yucky.