Possibly, or maybe "get your laughing gear in on that". It's definitely "laughing gear" -- meaning "equipment used for laughing," meaning "mouth."
I've never heard "laughing gear" before, but in US slang, the mouth is sometimes called a "cake hole" or a "pie hole" -- often in phrases like "shut your cake hole". (But under no circumstances should "cake hole" or "pie hole" be confused with "corn hole"!!!)
Anyway, that commercial was pretty hilarious.