1. plural of chitty; informal notes, chits, or written messages
Usage: informal; chiefly British
2. plural of chitty; small vouchers or receipts, especially in military or institutional contexts
Usage: informal; chiefly British

Examples

• She left chitties on the desk for the staff to sign.
• The soldiers collected chitties to exchange for supplies.
• He scribbled several chitties during the meeting.
• The office was full of chitties pinned to the bulletin board.
• They passed chitties back and forth to communicate quietly.