I would not consider your example as a slow play, you are assuming you have the best hand and will not be beat, but your example is far from that.
To me slow playing or trapping is better used when you have the nuts without a real possibility of being drawn out on. If you have the nuts on the flop, but there a draws that can beat you if the come, then I would not slow play there. Of course there are a ton a factors that come into to play for making the decision to slow play or not, i.e. opponents style, table image, action so far at table, etc., but that is my short answer. Good Luck!