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adj. used to signify to a friend in public that you think a particular girl is sexable. meaning that you would fuck her with the 'lights on' rather than off.
guy A: did you see that latin chick? totally lights-on.

guy b: latin chicks are a lights-off for me dood.

guy A: what about asian chicks?

guy B: hellz yeah! spotlights-on!
by BenSquared. January 11, 2009
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