From Longman Dictionary of Contemporary Englishpottypot‧ty1 /ˈpɒti $ ˈpɑːti/ adjective British English informal 1 CRAZYcrazy or silly What a potty idea! You must be potty!2 → drive somebody potty3 → be potty about somebody/something —pottiness noun [uncountable]pottypotty2 noun (plural potties) [countable] 1 
DHBa container used by very young children as a toilet2 → go potty3 → potty mouth4 → potty break
DHBa container used by very young children as a toilet2 → go potty3 → potty mouth4 → potty breakExamples from the Corpus
potty• Before long Betty will be serving up hot potties.Origin potty1 (1800-1900) Origin unknown potty2 (1900-2000) pot 