This game idea came to my mind. Here a poster posts a sentence which makes sense only when there is a context surrounding it.
The next poster adds context and posts another sentence which needs a context.
It will be more like a dialogue (or even monologue) with the previous sentence.
E.g. 1)
P1: That man is getting on my nerves.
P2: Well he is your manager and that is what he gets paid for. Remember what I told you about him last time we talked?
P3: Oh yeah, that is my favorite joke of all time.
E.g 2)
Pn: Do you really think I can do this on my own?
Pn+1: Oh come on Pn, a medium pizza is breakfast for you. Want some
coffee with that?
I'll start.
Well guess who just walked in?