Marc can be used to describe a person extremely talented at maths. A maths geek!
A person who takes great interest in magic, and is amazing at it is a marc.
A person who plays guitar very well is a marc.
Marc is someone with sexy hair.
Should not be mistaken for Mark, with a k.
"I'm having trouble with algebra, i wish marc was here"
"Cor, your hair looks sooo marc!"
"Play me something, you marc."