Two Theory

When one makes a generalization on something, and there are only two examples in which said event has occurred.
Person 1: "Yeah, that person always sings".

Person 2: "He's only sang at your birthday, and at the store. Two theory".
by two theorizer April 04, 2010
Get the Two Theory mug.

Two-door theory

The theory that ignorant people will wait excessive amounts of time to walk through an open door, as opposed to opening another door and saving themselves a great deal of time.
These people clearly never heard of the two-door theory
by Street Urchin April 06, 2004
Get the Two-door theory mug.