by Serah-xmhmm March 06, 2008

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

by Freya-Chan April 01, 2010

Larry: I totally Light Switched that girl last night, she loved it.
Dickbuttkiss: Yes you did.
Larry: Yes i did.
Dickbuttkiss: Yes you did.
Larry: Yes i did.
by DrNufario April 04, 2011

Flick the bitches eyes when you're recieving head; turning off her lights and cumming on her eyes, gluing them shut.
Guy 1: I flicked a light switch on your mother last night.
Guy 2: Thats why she couldn't see this morning.
Guy 2: Thats why she couldn't see this morning.
by Cliford September 25, 2005

Jacksfilms (a Youtuber) Asks for funny answers to questions on his "YAIY"(Yesterday, I asked you) series. Most answers are acquainted with light switches.
by Kennybunkport September 18, 2016

A dead meme created by Jacksfilms and his audience from the 54th episode of a popular series called YIAY the question was "What turns you off?" And most of the comments said "A light switch"
by Dona_atropia September 11, 2018
