hey-diddle-diddle en · NOUN
Meanings
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(alt-of, alternative, no-plural) Alternative form of hey diddle diddle.
alt of hey diddle diddle
We had one guy called Tommy Casey who used to say, "If in doubt, kick it up the hey-diddle-diddle." That was his instruction to you.
2019 November 12, Steve Zocek, For The Boys In The Royal Blue Jersey 2, Lulu.com, →ISBN, page 178: