stampstamp 

It means the same as cool or bet. Giving a confirmation.

You wanna hang?

Yea man stampstamp!

stampstamp by Slycaine7 May 22, 2018

Tampstamp 

A Portmanteau of Tampon and Stamp. The name of the act involving a woman dropping a recently used Tampon from the top of a building greater than 9 stories tall which not only lands on, but sticks to the head of a pedestrian below.

"Hey Sally, remember when the wind ruined your Tampstamp last Tuesday?"

Tampstamp by awesomeolion January 17, 2010