Top definition
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 24, 2021
Get a The Light Switch Bitch mug for your cousin Abdul.
Jul 26 Word of the Day
Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed
I got a call from X the other night. She had an extra ticket to a concert she bought for a friend, but they couldn’t make it so she called me to ask if I wanted to go because I am her Second String Friend.
by Deus-ex-machina August 26, 2020
Get a Second String Friend mug for your bunkmate Helena.
2
When you’ve been talking to a girl for so long and you get to know her so much and then all of a sudden she switches up on you turns into a different person and makes you hate her. .....the light switch Bitch.... here one second; gone the next.
The Light Switch Bitch is the girl that you have been talking to you makes you feel like you know her, then out of nowhere she switches up on you .

Friend: don’t worry about her, Tanisha just a light switch bitch...it’z what she do
You: I know but she made me feel like I was the only one. I gave her all my energy and time. Then her personality DIPPED!

Friend: wow what a light switch bitch!
by Twitch: TTVDeepReef February 25, 2021
Get a The Light Switch Bitch mug for your bunkmate Bob.