好管享用一生吃俺老孙一棒
[hăo guăn xiăng yòng yī shēng chī ăn lăo sūn yī bàng]
This seems to humorously combine an idiom about minding one’s own business ('better management of one’s own enjoyment') with a line from a famous character Sun Wukong in the Chinese epic 'Journey to the West', indicating a playful yet firm warning against meddling or misbehaving.