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As popularized by the "Worst Wedding DJ Ever! (Original)" video found on youtube, this move of unparalleled gumption and rhythm requires walking up to your significant other and essentially playing the congos with their boobies.

The move can only be employed at weddings while listening to Phil Collins', "In the Air Tonight," thus making it extremely rare to be seen.
"Honey, did you just see the perfectly executed Knock Knock Boobie Rock?"
by Genesis and Phil Collins May 19, 2010
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