I'm pretty sure Snapzu is still too fresh and under heavy flux for enough "extraordinary" content to be accumulated to allow for insider jokes. When it gets more prominent though, I'd think it'll depend heavily on how the tribe chief perceives the value of such humour in that tribe.
/u/LacquerCritic already touched on new tribes with some good advice.
I'm pretty sure Snapzu is still too fresh and under heavy flux for enough "extraordinary" content to be accumulated to allow for insider jokes. When it gets more prominent though, I'd think it'll depend heavily on how the tribe chief perceives the value of such humour in that tribe.
/u/LacquerCritic already touched on new tribes with some good advice.