chuck.

A type of chuck that is very serious and pays closer attention than average chucks usually do. It’s hard to tell the difference between a chuck and a chuck.

Adam: That chuck is like all the other chucks but I don’t understand the difference.

Steve: That’s not a chuck, that’s a chuck.
Adam: Ohhhh that makes sense!

Steve: Yeah a chuck. Is not a chuck but you could be one if you paid closer attention.