A temporary or permanent state of mind that occurs when a person is dissatisfied with a result. This reasoning may range from borderline valid to extremely frivolous.
Michael: What a gold digger Mary is! She's only dating Adam because he's rich.
Thomas: That's just your discrimagination. It's probably because they have similar hobbies.
MIchael: Like what? Hiking? I could try that.
Thomas: You have no legs.