Angstheist

Angstheist is a derogatory term used to describe atheists who are outspoken about their beliefs about religion. It comes from the stereotype of the angsty teenager, who rebels from his or her parent's religion and becomes an atheist who attacks religion, predominately Christianity. The term is widespread in Current Events, where topics involving the subject of religion frequently fetch 500 posts as a result of ongoing trolling and debating. The most well-known angstheist CEman is ultcomics, but ClearAFlagrant (and alts) is also well-known.

Etymology
Angstheist is a portmanteau of angst and atheist. When and where exactly it originated is unknown.