the oldest trick in the book

US /ðɪ ˈoʊldɪst trɪk ɪn ðə bʊk/
UK /ðɪ ˈoʊldɪst trɪk ɪn ðə bʊk/
"the oldest trick in the book" picture
1.

老掉牙的伎俩, 老把戏

a very old and well-known method or trick that is still used, often to deceive someone

:
Trying to distract me with flattery is the oldest trick in the book.
想用奉承来分散我的注意力是老掉牙的伎俩
He tried to use the oldest trick in the book to get a discount, but I saw right through it.
他试图用老掉牙的伎俩来获得折扣,但我一眼就看穿了。