down unda 

The paste like substance that is on a man's testicles when they either do not shower or perform various physical activities

"Yo man I need a shower I have mad down unda"

down unda by CMW9921 April 6, 2017

Down-unda-handshake 

1) Use of insider information in Australia to get something
2) Handshake with a cock (see also Handjob, Handie, Handjo,...)

"Use your down-unda-handshake to get us the information."

"I received a down-unda-handshake from that chick we met last week in Melbourne."

Down-unda-handshake by AUtacobender January 18, 2014

Brushfires Down Unda

When a girl has long ginger pubes.

Me: Hey Jake what happened with you and that redhead?
Jake: It was sweet bro. I got all up in those brushfires down unda.
Me: That's fucking nasty dude.

Brushfires Down Unda by nutellacroissant February 27, 2020

Fromunda downunda 

Anatomically incorrect colloquialism unique to The Parrish in reference to genatalia.

Last weekend when I was fromunda downunda it was laissez les bon temp roulez.

Fromunda downunda by Wopjob November 16, 2011