TLSB is basically a female that makes you think and feel as if they care about you, and as you get to know them they switch up on you for no reason, and leave without explanation. ...how rude...what a Light switch Bitch (TLSB for short)
The Light Switch Bitch TLSB for short is a female who switches up on you out of no where...

Her: “I can’t F*ck with you no more”

Him: “I gave you all my energy Danisha and all my time”

You’re friend: “dude just drop her, she’s a Light Switch Bitch anyways”
by Twitch: TTVDeepReef February 25, 2021
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The Bitch Switch is a very complex scenario, in which a guy is with a girl, smashes, and has that girl leave, moments before the next girl shows up without either of them knowing anything. Both of which are complete opposites of each other i.e. night and day.
John: How'd your night go?
Randy: The Bitch Switch worked perfectly as usual
by Mr. Bob and Vegene May 11, 2021
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When a female goes aggressively reacts, usually instantaneously, in an aggressive manner
You clicked her bitch switch when you said her mom was hot.
by SheRidinNerdy November 29, 2017
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