Our work isn't done yet, 'not by a long chalk'. [=('US') 'not by a long shot'; we still have a lot more work to do]
The teacher handed her a piece of 'chalk' and asked her to write the answer on the chalkboard.
He put 'chalk' marks on the stage to show the actors where they should stand.
(..) There's gotta be something wrong with him! All right Joey, be nice. So does he have a hump? A hump and a hairpiece? Wait, does he eat chalk? Just, 'cause, I don't want her to go through what I went through with Carl- oh! Okay, everybody relax. This is not even a date. not having sex. (..)1994 TvShow: Friends Title: The One Where Monica Gets a Roommate Season: 1 Episode 1