Bazinga - Shown spelled with Chemical Elements.

Ba - 56. Barium 137.327

Zn - 30. Zinc 65.38

Ga - 31. Gallium 69.723

This postcard is postmarked in 2013.

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Bazinga: A catchy phrase to accompany your clever pranks.

As popularized by Sheldon Cooper (The Big Bang Theory).

"I just replaced your toothpaste with denture cream. Bazinga!"

Here is a video of Sheldon ...