龜笑鱉無尾

1. • lit. a tortoise laughing at a soft-shelled turtle for having no tail (idiom)
2. • fig. the pot calling the kettle black

Character by character

• 龜(guī)tortoise
• 笑(xiào)laugh
• 鱉(biē)softshell turtle
• 無(wú)not to have
• 尾(wěi)tail