Bié guāng kǎn dàshān le, wǒmen zuò diǎn zhèngshì ba.
Stop chatting idly — let's get some real work done.
Tips
usage
侃大山 (kǎn dàshān) is a common colloquial phrase meaning 'to chat idly' or 'to shoot the breeze'. 侃 alone can also mean to boast or talk smoothly. It is informal and colloquial in register.