My parents always say things that completely means something different... here are the examples...
What do you want? = Why tf are you acting like this?
Go do (something you like to do). = We're talking about private stuff and we don't want you to hear.
Did you do your homework yet? = I'm trying to change the topic here...
I'm so disappointed in you. = You suck. XD
Stop being like this. = Ugh I can't take your annoyingness anymore. XD XD XD
These are the ones that I can remember so far. I'll add if I have more. XD