Jak mi kiedyś odpierdolisz to wpierdol! means?
odpierdolić in this context doesn't really make much sense, at least not to me. odpierdolić coś is to do something badly, not make an effort etc., odpierdolić się means to either feck off/get lost or make yourself look good, dress up. but odpierdolić komuś? hmmm.
so it could mean something along the lines of: If you ever leave i will kick your ass or If you ever mess up something for me i will kick your ass. either way, it is a clear warning, nice lol.