...do people actually narrate as excessively as Nat? Well, players. DMs get to, but players should be more succinct about it. My 2 cents.

I did this once or twice in game. I got killed quickly

The trick to being witty and loquacious in a game of D&D is to keep the long descriptions for situations where they're useful.

Like, say, when you're the Rogue, searching for traps, and want a thorough description of a room.

Otherwise, keep it to banter at most.

I usually let them get wordly in circumstance when the character would have all the time to speak or make long and slow action (like searching a room), but they just have to keep the description shorter when doing something that should be fast.
they are more in thune with what happen to their characters this way.

i did once, but in-character. my character had a habit of making long and eloquent speach.