Moshi Moshi or 'Moshi' for short is a phrase used to initiate a period of time where everyone in a group puts their phones face down on the nearest table without picking it up, for the purpose of enjoying the moment and each others' presence.(Usually right after a smoke sesh)
Generally, someone who is negligant to the fact that they are either prepubescent or senile, and either way are not of the mosher age. These people are most often the ruin of your concert experience, and you will find them at EVERY concert, because they're addicts. The end.