不要骗我骗我你就惨了
[bù yào piàn wŏ piàn wŏ nĭ jiù căn le]
This translates into don't lie to me, implying a warning. The second part “骗我你就惨了” further adds that the liar will have terrible consequences. It shows that the user does not appreciate dishonesty or lies and would react strongly against deception.