Crossword Genius

Gag from pen of Spooner? Line causing mischief (7-6)

Ross

I believe the answer is:

jiggery-pokery

But I can't explain it at all!

(Other definitions for jiggery-pokery that I've seen before include "Hanky-panky" , "Deception" , "Monkey business" , "Dishonest dealing" , "Trickery" .)

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