potty UK /ˈpɒti/US /ˈpɑti/noun 3adjective 2verb 1forms 5phrases 1 noun3 •(informal) A chamber pot. •(informal) A small, usually plastic, chamber pot used to toilet-train small children.If you just let him know you want him to go on the potty, or anything, he's miles away. — 1940 •(informal, humorous) Any other device or place for urination or defecation: a toilet; a lavatory; a latrine; an outhouse. adjective2 •(informal) Insane.The noise that the neighbour's kids were making was driving Fred potty. •Easy to pot the ball on.The Eastbourne Green is by no means a " potty " one, and happily belies its appearance. — 1890 verb1 •(informal) Synonym of go potty.If anybody needs to potty, do it now before we go. formspottied · pottying · potties · pottier · pottiest Phrases with potty potty mouthA person having this characteristic.