1. A greedy, angst-ridden individual (usually Teenager) who hates religion but celebrates Christmas. This individual is usually not very bright and doesn't know it. His or her attempts at being bright result in repeated failure as his or her bright atheistic peers invalidate him or her. These peers whom are far less emotional and far more keen at critical thinking, are quick to repudiate the individual for lacking intellectual substance in argument or engaging in outright stupidity that has potential to reinforce negative stereotypes projected upon atheists by religionists.
Madeline is such a McAtheist if there ever was one. Her arguments are so inane that The Dean of Philosophy gets livid and tells her to just not comment to the visitors when asked about her philosophical positions since it makes decent rational atheists and skeptics look bad in front of those simple-minded religious folk touring the University.