Webster's Revised Unabridged Dictionary · 1913

Yuck

Yuck , intransitive verb

[Compare German jucken, Dutch yeuken, joken. See Itch.]

To itch. [Provincial English] — Grose

Yuck , transitive verb

To scratch. [Provincial English] — Wright

yuck , interjection

an interjection expressing repugnance or distaste.

yuck , noun

a laugh; also, a joke or gag; -- usually used in the plural, as, the skit got lots of yucks. [slang]