Competition Where You Riff on an Imaginary Axe

This page is the CodyCross answer for the clue below from Ballroom Dancing, Group 1929, Puzzle 4 (Backward Walk).

Question is: Competition Where You Riff on an Imaginary Axe

and the answer is: AIRGUITAR

Word Meaning:

AIR GUITAR — An imaginary guitar that a listener to (usually rock) music pretends to play.

Definitions from Wiktionary.