Pong Mitzvah 

The celebration of a young man's coming of age in which he plays his first game of beer pong.

Hey man, so are you going to Eric's Pong Mitzvah on Friday night?

Hell yeah man! I'm gonna get so schwasted and pong my face off!

Pong Mitzvah by Chief03 January 2, 2010

Pondmitzvah 

Initial time your child swims/surfs/wakeboards etc. in a retention pond. Usually the result of peer pressure. Requires multiple showers afterwards.

Dude, did you see Luke yesterday? He had his Pondmitzvah.

Pondmitzvah by Beach Momma June 2, 2010