little man hands?

in the car on the way to dinner:

9yo: ouch.  i hit my head on the window.
daddy: well, try not to do that anymore. you might hurt the van.
9yo: are you saying my head is a ton of bricks?
daddy and me: yes
9yo: ooh you’re gonna get it.
daddy:  but are you going to give it to us?
9yo: that’s it.  I’m gonna strangle you with my little man hands!!
daddy and me: ?????