In this clip from next week's Smallville, "Stiletto," We see Lois in her superhero costume where she calls herself Stiletto. In this scene, Clark calls her out on being Lois.
Added:

Smallville Quotes

I'm about as real as it gets.

Chloe

Clark: My father says you learn more about yourself when you lose.
Lex: What'd you learn?
Clark: That I'm not destined to be a politician. You need two different personalities.
Lex: You don't need to be an elected official to change the world, Clark.
Clark: Have you ever thought about getting into politics?
Lex: Someday I'd like to be president.