"crazy, silly," 1916, slang, of unknown origin, perhaps connected to potter (v.). Earlier slang senses were "easy to manage" (1899) and "feeble, petty" (1860).
potty (n.)
1942, child's word for "chamber pot," from pot (n.1). Potty-training is attested from 1958. Potty-mouth "one who uses obscene language" is student slang from 1968.
实用例句
1. The baby has done a wee in his potty.
婴儿往便壶里撒了尿。
来自柯林斯例句
2. The kids are driving me potty!
这群小崽子烦死我了！
来自《权威词典》
3. He seems to have gone / to be quite potty.
他好像疯疯癫癫的了.
来自辞典例句
4. He is potty about comics.
他对漫画书着了迷.
来自辞典例句
5. A person with his ambition won't stay long in a potty little firm like this.