An onomatopoeic reference to the drum sound effect heard after a punchline has been told (called a percussive sting). "ba dum" is the sound of the snare drum and "tss" the cymbal.

It is often used in a sarcastic manner after a cliched or bad joke has been told.
John: "My essay on the cold war has to be finished tomorrow, I'm really Russian to finish... sarcastically ba dum tss"
by John1001 June 6, 2015
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The sound of a lost soul, begging for acceptance in a world of people that don't think their joke is funny.
Why did the chicken cross the road? To get to the other side! ba dum tss
by cheesisnice August 2, 2019
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A sound made by the beating of a drum
Bruv make that drum go ba dum tss.
by Artapel Mazambane July 13, 2021
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Ba dum tss είναι ο ήχος των drums!
Για να καταλάβετε καλύτερα πατήστε στο YouTube ''Ba Dum Tss'' και θα σας εμφανιστεί !
by yolooooswag February 11, 2014
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An onomatopoeic sound usually heard after a dad joke
My essay on the Cold War has to be finished tomorrow. I’m really Russian to get finish. *sarcastically* ba dum tss
by sdmn :) May 15, 2020
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