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.
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Smallville Quotes

Oh, Lex is definitely one of a kind.

Clark

Snow dad's been a little frosty lately. Maybe we need to find another way to get that genie back in the bottle.

Oliver