Top definition
noun
someone who knows everything better and even if not he thinks he does and shows that; mostly he does know everything better, usually general knowledge
Two persons are having a conversation about a topic. A third person who is the smartshitter says that it's not correct what A said, it's actually something else and says exactly what it means and where it comes from...
by Apees January 15, 2009
Get the mug
Get a smartshitter mug for your father Bob.