Funka is used to address someone who is not a dude or a random person. In plural just add 's' to the end like a funka would and join the group of funkas.
As a matter of fact, inferred from the original Swedish definition (meaning operating or functioning); someone who is functioning and operating normally, can be called a Funka.
Do not call someone who is a minor, sick, or just not cool a funka
1. Hey listen to that funka, he knows what he is talking about.
2. You funkas want to see a movie tonight?
2. Yo, y'all funkas want some chicken?
3. Go on and funk her up like a real funka would funk!