My uncle could perform various tricks with nunchucks when he was young.

nunchucks 是 nunchuck 的复数形式，nunchuck 是"双节棍"的意思，指由两根短棍通过链条或绳索连接而成的武器或表演道具。这个词源自日语"ヌンチャク"(nunchaku)的音译。