Who is a meatpuppet?

When you bring in your friends or family to support your position in a discussion they are called meat puppet. This often happens when you feel that more people expressing similar opinion will give your stand a better chance of prevailing. That is usually the case in real world, but sadly, it is counter productive on Wikipedia. Sudden appearance of new editors with little or no editing history in the same discussion is treated very suspiciously. In fact, it is often the case that such users are treated as sock puppet for the purpose of enforcement of any blocks.

It is impolite to accuse some one to be a meat puppet of another user. Unless you see a deception being played out there is no reason to hurl such accusations. The guidelines pertaining to meat puppets are documented in a Wikipedia policy here: WP:MEAT.