The fear of the number 13. Anything involving 13 is considered frightening. This is used many times to refer to the class of 2013, seeing as it is the best and feared by all the rest.
The class of 2013 scares me because I've never seen any class that amazing; I must have tridecaphobia.
by CLASS of oh one three lovaaaa. November 13, 2011
Can you define these popular missing words?