Definition of rumty iddity in English:

rumty iddity

(also rum ti iddity, rumpti iddity, rumpty iddity)

exclamation

rare
  • Used as a meaningless refrain or utterance. Also as noun (occasionally attributive).

Origin

Early 19th century; earliest use found in Monthly Mirror. Origin unknown.

Pronunciation

rumty iddity

/ˌrʌmtɪ ˈɪdɪti/