What this mean don't do anything i wouldn't do?

Question

What this mean don't do anything i wouldn't do?

Answer 1

"Don't do anything I wouldn't do!" literally means that if the person saying this would find an action improper/immoral, then you should not do it either. their advice is to remain proper.

however, the statement has sexual connotations and is often said as "Don't do anything I would do!" meaning that the person may do something questionable (especially of a sexual nature) but you should not.

Answer 2

It is actually an illusion to carousing and debauchery. In other words, behave yourself.  

Answer 3

What it usually means is don't do anything that you wouldn't want the other person to be doing in your absence.