Lǎobǎn yí jù “wǒ hái yǒu shì”, děngyú xiàle zhúkèlìng.
The boss's 'I've got things to do' was basically a dismissal.
Tips
history
Originally the decree by Qin Shi Huang expelling foreign advisers from the Qin court — Li Si's famous 《谏逐客书》 argued against it. The phrase later generalized to any host's signal that a guest should leave.