One is either a Tammy or a Mandy in that one either has faith or not. There is, of course, room for the abundant agnostic population that lies somewhere in-between these extremes, but they do not have as many amazing t-shirts as purebreds.
Mix of purebreds [Click to enlarge]:
The Tammy/Mandy dichotomy can be applied to all people, but my micro focus is mostly on white women ranging from low to middle class with a tendency to use hairspray because they are the most accessible form of purebreds in my life. These white women types of Tammy and Mandy are also fascinating because they are so close to each other but so far away from each other at the same time.
She will Kill you/ Fuck you... She will collect duck figurines