Question

What do you call drawing squares on dracula?

Answer 1

This is a rather corny play on words (also known as a pun).
If you draw squares on Dracula,  you are checking a count, which is a humorous riddle meaning to resemble the term checking account used in business and economics.

Answer 2

I am not sure what a joke has to do here, but anyway, a question is a question. This is a joke which answer expects a pun or a play with words. The answer to this joke is: "Checking account"

When somebody asks you what do you call drawing squares on Dracula you answer: Checking account because Dracula was a Count, and the sound produced by saying together " a count" is the same as "account".

A checking account is a deposit account held at a financial institution that allows withdrawals and deposits. Also called demand accounts or transactional accounts, checking accounts are very liquid and can be accessed using checks, automated teller machines and electronic debits, among other methods.

This joke makes reference to this popular kind of bank account.