Why are those two examples abstract?
The idea of "stats" is a gamer thing, but Jake is talking about "stats" as applying to real-life scenarios.
Then there's the idea that a robot is "doing a thumbs up" in some sense or another that doesn't get across through the physical realm. That's how I perceived it, aynyway.
"Stats" were a sports thing before there were video games, or even before integrated circuits.
the show is often dungeons & dragons-y, so i assume it was in that context. regardless, you wouldn't use the jargon of "stats" when talking about real-life scenarios. and besides this altogether, there are countless examples. i just randomly picked two that i could remember. there's an entire episode ("All the Little People") that is a playful exercise in abstraction. but maybe "idea humor" has a better connotation
Or NEPTR's "You cannot tell, but I am giving a thumbs up." http://www.youtube.com/watch?v=qTTplK3kin8
In other words, the humor/atmosphere is much geekier than what you'd expect to find on a television show. The only other show I remember with this aspect is Futurama, except that Futurama is overt with its jokes, whereas Adventure Time has many shades of subtlety.