a new, hip form of the word "banter" which frankly is becoming over used, plus its much more fun to say.
it means to engage in a funny conversation with other people.

When used as a noun it is the collective term for the code of honor and way of life (just like Bushido). Its origins are from Dagestan and the father of the Smesh is considered to be the ufc fighter Khabib Nurmagamedov.
When used as a verb , smeshing is superior than smashing and always results in changing the face of the smashed guy. This is the highest purpose for anyone following the Smesh code.

When used as a noun it is the collective term for the code of honor and way of life (just like Bushido). Its origins are from Dagestan and the father of the Smesh is considered to be the ufc fighter Khabib Nurmagamedov.
When used as a verb , smeshing is superior than smashing and always results in changing the face of the smashed guy. This is the highest purpose for anyone following the Smesh code.

A fresh Smell or something that is new

Low key Smoke+Sesh (session)= smesh.

Another word for smash when you're feeling random.

I dumb internet trend in the end of a smosh video about the mandela effect