when you dont take a shower for 2 weeks... you get covered in grime
geez dont be a grimeball man
A young male who is usually smelly or dirty. They are complete assholes to other people and think they are really cool. Will never do anyone a favor.
Jake: Do you want to go and chill at Dan's house
Tony: Na man, that kid is such a grimeball
Jake: Yea true that.