Someone usually an Atheist that forces their scientific and bis belief of God on others. Can range from annoying to STFU.
They are the Bible Bashers of Atheists.

Though not all Atheists are like this.
Science Basher: GOD IS NOT REAL, IF YOU DONT ACCEPT EVOLUTION YOU'RE AN UNCULTURED SWINE.
True religious guy: God your annoying.
by NoFlorida April 3, 2015
Get the Science Basher mug.