patootie
/pəˈtuːtɪ/noun
(pl. -ies) N. Amer. informal <北美, 非正式>
1
- dated a girlfriend or a pretty girl〈旧〉女朋友; 美女。
2
- derogatory a person's or animal's buttocks〈贬〉（人或动物的）屁股。
词源
1920s: perhaps an alteration of POTATO.