A Fat black person, usually a girl.
mike: yo dude look at that flack girl shake her ass
bob: man, ew.
A universal racial slurr; basically, a racist derrrogitory term for any ethnicity
Jose: Hey you stupid flack
Mr. Lee: the only flack I see here is you
Jebidiah: you are both flacks
Human Resources: you cant be sayin dat shit
1. To procrastinate, waste time dilly dally around all day!
2. to dick around .
3. to accomplish absolutely nothing all day.
1. I was just Flacking around.
2. she's probably just Flacking around the house.
When you get bitch slapped
Im gonna flack my ball sack in your eye.
when you take a shit in a girl's pussy and eat her out
"Awww man, I got flacked last night!"