DAILY UPDATED VOCABULARY WITH PICTURES.

• potty plural potties [countable]
• 1 a container used by very young children as a toilet
• 2

   go potty

  American English to use the toilet - used by young children or when speaking to them:
• Do you need to go potty?
• 3

   potty mouth

  American English spoken someone who has or is a potty mouth uses offensive words
• 4

   potty break

  American English informal a time when you stop what you are doing, especially when driving a car, so that you can use the toilet - used humorously

Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.