5
The EXACT moment between "I'm FAAUUUKED UP!" and "I'm BLAAACKED OUT!". Another form of "Dr. Jekyll and Mr. Hyde". The EXACT moment when you pal goes from "Zero to Hero" during a solid evening of ripping a beverage or 10. You're ripping shots with your friend at the bar and they are acting fine, and then, suddenly, their LIGHT SWITCH trips on...
You girl, you went from "Zero to Hero" last night after that last "Red Headed Slut" shot we took. Your LIGHT SWITCH tripped and all the sudden.... I think I saw Va-GINE-NA during that keg stand!
by Kocktail Stockdale August 26, 2014
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6
A alcoholic drink made with equal parts bourbon (traditionally Southern Comfort) and squirt.

Refers to the fact that the drinker will go from sober to drunk very quickly with no buzz in between, i.e. flipping a light switch.
After two lightswitches, i was straight drunk.
by Evan Carr October 10, 2005
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7
When you flick the female clitoras as if it were a light switch, in a light switch motion.
Larry: I totally Light Switched that girl last night, she loved it.
Dickbuttkiss: Yes you did.
Larry: Yes i did.
by DrNufario March 18, 2011
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