Walby

Danish word for having a big dick. Also used as a surname.

"Wow! You've truly got a walby in your pants"

"People are saying that Danny has a walby, but I honestly doubt it, considering how he is an Asian."

nyhus

A person who engages in intercourse with lots of different females. Also used as a surname in the Netherlands.

"Damn bro, did you fuck Stacy AND Beth last night? You're such a nyhus!

Venstad

A synonym for the commonly used word "player". Also a European surname.

"I saw Jack bringing two chicks home last night, he's such a venstad!
"I fuck bitches every day, I'm a goddamn venstad.