Mushroom Stamp

An imaginary outline left by slapping one’s magnum dong against the face of another.

If you gave Lady Gaga a mushroom stamp, you'd be using your dong to poker face.

by Rationalize October 03, 2011

magnum dong

A comically large shlong, capable of filling an over sized condom with disturbing ease.

As a pickup line:

<drops magnum condom in front of hot, yet sufficiently easy woman>

"Oh whoops… I dropped my monster condom that I use for my magnum dong."

As demonstrated by Frank Danny DeVito in "It's Always Sunny in Philadelphia".

by Rationalize October 10, 2011