What is じゃねんじゃ.. My friend say it is Tsukkomi but I don't get it


I posted this タイからこんにちは！ in the web somewhere with my Twitter ID. And then
there is someone new followed me in Twitter with a tweet タイからこんにちは！ じゃねんじゃ in
his timeline. I wonder what that actually means..

This is used by tsukkomi player? How?




It's a dialectal (jocular) expression with a little slack spelling.

> じゃねんじゃ  
>  → じゃね **え** んじゃ (restoring contracted vowel)  
>  → じゃ **ない** んじゃ (non-vulgar form)  
>  → じゃないん **だ（よ）** (Standard Japanese equivalent)

So, it means something like "No way it's that ~", or more tsukkomi-like:

> _"Hello from Thailand"? Oh, come on!_

