Chalker is a fat person, specifically a girl. A girl is a Chalker when they are too big for you to wrap your arms around them when you hug them. In this situation you put pieces of chalk in your hands and mark down on the girl where your hands end. Then you would continue to the other side of the fat girl and put your hands where the chalk lines are, completing the hug.

Basically: A chalker is a fat girl that you can not fully wrap your arms around when you give them a hug.

When someone thinks they are the main character of their life. Usually comes with a side of individuality complex, quirky style and a self centered point of view.

1. A nerdy person, usually one who wears cargo shorts.
2. A white dad at a barbecue.
3. High school frat stars who wear grey New Balance shoes and calf high white socks.

A line of the drug cocaine.

A term used for a horrible player on a hockey team.
The guy who's so bad the coach will scratch him just to count the score, shots, hits etc. on a chalkboard. In the worst case, a chalker will be chosen even when the team has 5 or less usable players.

someone who uses chalk as an artistic medium ...can be on a chalkboard, brick wall or sidewalk...

In Surfer speak: Someone who wears an all black wetsuit and has an all white surfboard.