a nerd who fancys girls he just cant have

Rudi is another word for giant deuce.

A Rudi is someone who can be lurking discord chats, scavenging for inapproriate furry porn. A Rudi will deny all claims that they are a furry but will still be known as one to their friends.

Rudi is a ranga dick. Everyone hates him and he should die in a hole. He liked Jessica but she though he was a cunt. He is never getting anyone!

This can be a girl or a guy. Rudi is someone who genuinely cares about other people. This makes them very attractive and someone to hold on to. Rudi can make anyone laugh, smile, or lift up their mood. Usually is very good looking and sweet.
Damn Rudi is so sweet and cute!
And has a huge head