Meaning of unk-unk in English:

unk-unk

Pronunciation /ˈʌŋkʌŋk/

noun

slang US
  • An unknown factor, variable, issue, or event which it is impossible to predict or anticipate; = unknown unknown . Usually in plural.

    In early use chiefly used in the context of the aerospace industry.

Origin

1960s; earliest use found in Electronics. Shortened from unknown unknown, perhaps originally as a graphic abbreviation, with subsequent development of a (probably humorous) pronunciation with/k/.