This word can be used in 2 ways.
1. Used to state that
something that someone previously said, is in fact, true.
2. Used by douchebag tools that always say it after someone says
something. Sometimes being
irrelevant to what the person just said.
Example 1.
Teacher: The
earth is a sphere. Student, what is the answer?
Student: True.
Example 2.
Person:
Yo broski I just got these sick-
ass headphones!
Douche: True.