Chalk

An adjective used to describe an overachieving college/university student who enjoys hitting the gym
Chalk is a strong metaphor because chalk is commonly used by powerlifters and at school alike

Samuel just completed his economics exam and went to the gym, what a chalk

chalk bandit

A bitchass motherfucker from Colorado. Known to vandalize skate shops and art stores. The true identity of the Chalk Bandit is unknown but there are many suspects. Chalk Bandit sightings have been reported in other states.

You: Did you see the news? They caught the Chalk Bandit
Them: Which one?

Rock Chalked

The act of being ejected from a skateboard or longboard by running into a small rock or pebble. Leaving a small white line on the asphalt or concrete behind.

I got Rock Chalked on my last run and lost my palms.

Chalk it

Essentially to give up and call it quits. Fits best when the overall tone of the conversation is one of defeat or gloom.

Eddie: Listen man, we've been playing this game for the past 2 hours and we still can't get a win. I think it's time we chalk it.

Luis: Nah man, we can't get off without a win.

Chalking up

To dip the end of your penis in a bag of cocaine

Chalking up, the only way I let the misses do coke

black chalk

Black Chalk meaning the police in 2017’s “Okja” movie.

“The Black Chalk is here!!”

chalked them off

Finished them off.

RJP

They chalked them off

They chalked those canapés off