Yawn Stealer 

Noun- Yawns are contagious, therefore when one person yawns someone near them steals their yawn.

Dave yawned, and a second later Kerri yawned Dave yelled, "Yawn Stealer".

Yawn Stealer by kerri and dave August 31, 2005

man stealer

a girl that takes her "best friend"'s crush away from her. she lies and says she wont date him because she knows her best friend likes him, but she does it anyway. if she would rather lose her best friend over a guy, then that's her choice.
she can suck my dick.
:)

Barbara told Chantel she would NEVER date Ryan because she knows she likes him. But her and Ryan are "talking" now.
What a man stealer.

man stealer by Keylee. January 14, 2009

Sperm stealer 

Women who tells a man she is on birth control or cannot have babies and then whines up pregnant.

After our first child my wife told me she couldn't get pregnant 11 years later when i was asking for a divorce she magically got pregnant. Well too bad for her I left anyway now looking to see if I can sue her for lying and being a sperm stealer.

Sperm stealer by misstress69 February 19, 2012

Boyfriend stealer 

Gianna.

Jade: omg Gianna is suck a Boyfriend stealer
Lily: yeah Ik she took the guy I was in love with for 9 months!!!!!!

Jade: what a bitch

Boyfriend stealer by Sam Welsh May 24, 2016

boyfriend stealer 

a backstabbing slut

Veronica: OMG Jack is so hawt rawr xD i think i love him

Ellie: I hate him

Veronica: Godd he is all mine

Ellie: *two days later* This is my new boyfriend Jack

Veronica: you are a boyfriend stealer!!! A SLUT

boyfriend stealer by Veronica Hastings March 11, 2017

Thunder stealer 

A thunder stealer is a very annoying person who bursts in to your conversation and changes the topic to him/herself. Usually leaves you aggravated.

Bob: Hey guys LISTEN! You won't believe what happened today!

Jack: What?

Bob: Well i was walking down some alley when i got jumped by three guys with-

Thunder stealer: OH HEY JACK did you do yesterday's homework!?

Jack: Oh yeah, it was pretty easy

Thunder stealer: Hahaha, yeah. Hey can you show me something in the homework? It's on page 54...

Bob: Hey what about my story...

Thunder stealer by Sherrrryyyyyy September 9, 2009

Thunder Stealer 

Someone who deflates your ego and morale by taking your work and passing it off as their own OR says it's not that impressive.

I sent Steve this link last week and now he's pretending he came up with on his own. Why's he gotta go and be a thunder stealer!?

Thunder Stealer by G Diddy Liddy December 21, 2008