rudy-stash 

When on has a mustache consisting of dark peach fuzz hair, much like Rudy from The Cosby Show

Your rudy-stash makes you look like a porn star guy...

rudy-stash by chumbawumba1111111 April 15, 2008

rudystache 

A pre-pubescent girl who is sporting a slight yet pronounced moustache, much like Rudy from the Cosby Show.

"Check out that girl with the rudystache. I bet she was the cute kid a few years ago but now she looks like Alfonso Riberio, which is no fun."

rudystache by ExNWPers August 8, 2005