Possible Definitions:
1. Customer (n.) One who collect customs; a toll gatherer.
2. Customer (n.) One who regularly or repeatedly makes purchases of a trader; a purchaser; a buyer.
3. Customer (n.) A person with whom a business house has dealings; as, the customers of a bank.
4. Customer (n.) A peculiar person; -- in an indefinite sense; as, a queer customer; an ugly customer.
5. Customer (n.) A lewd woman.