- hu ahh (with a pitch upswing at the end) = yea, I'll give you a slightly affirmative sound, but I'll conveniently "forget" to do what you're asking and hope you do the same - commonly used when we tell him to do things like wash his face, brush his teeth, clean his room
- meh = it was ok but I wish you'd let me zone out and watch tv, this is closely related to the more verbose "yea, yea, whatever", which some kids use
- schna = not bad, thanks for asking, but please don't ask me to do anything right now
- uh (gutteral grunt, really) = seriously, you're trying to engage me in conversation? Maybe if I just grunt you'll go away?
- general groan = please, please, please leave me alone and don't discuss this sensitive/annoying/difficult topic/chore/problem with me . . . ever
- lyrical grown with hand over face, mostly covering his eyes = omg, my parents are so weird
It's cool, when you get a glimpse of the adult your child is becoming.