look up any word, like bae:
 
1.
well, obviously!
Guy #1: That girl definitely wants you.
Guy #2: Weltz bro.
by LA swag November 18, 2011
 
2.
A huge dick. Compared to being hung like a horse, just bigger.
You want to go to my place and see my weltz?
by Keg25 June 27, 2010