Don't crush elder sister and brother-in-law will hit

Don't crush elder sister and brother-in-law will hit
Don't crush elder sister and brother-in-law will hit

Don't crush elder sister and brother-in-law will hit
不要顶撞你的姐姐,否则你的姐夫会打你

Don't court elder sister(it is a kind of love relationship)and brother-in-law will hit you.
楼上的，crush 有爱情的意思.
e.g. she is my crush
it meaning to say she and me love each other,but without a formal relationship

别压坏姐姐,姐夫会撞到你

别爱上你的姐姐，否则，你的姐夫会来打你的