Pun-Stealer 

Once you have stated a joke or "pun" and nobody noticed you even talked, the person sitting directly beside you repeats the joke and everybody heard it and he/she gets all the laughs and all the credit for your unique joke.

(You) "Why can't Helen Keller drive a car?...Because she's a woman!!!!"

(Crowd)-----(Didn't acknowledge your existence)----

(Pun-Stealer) "Why can't Helen Keller drive a car?...Because she's a woman!!!!"

(Crowd) "HAHAHAHA!!! He's so funny, if only I were as awesome, unique, witty, and brilliant as he is! I bet all the girls are begging to sleep with him!

(You) "I HATE YOU, YOU FRIGGIN' PUN-STEALER! I WILL EAT YOUR FIRST BORN CHILD!"

Pun-Stealer by Foxy McFoxerton May 5, 2010

Steamed Donut 

A steamed donut is a Rim-Job given in a shower room or a sauna.

Emma gave josh a steamed donut in the wrestling locker room.

Steamed Donut by Dr. Mark Cuddlefishman December 19, 2010

Thunder Stealer 

One of your "questionnable" friends who, when you try to set up your other friend with some chicks, comes by and steals the attention from said friend. thus making him a communist,thunder-stealing, jerkface!; Also makes you feel like a jerk because your well thought out plan to hook up a friend goes horribly wrong.

"Hey mauro, go talk to those chicks!"
"nah, jesse will steal my thunder and i'll have to go home and cry..."
"yeah, you're right.screw that thunder stealer"

Thunder Stealer by AcousticBandit8 October 1, 2009

steamed beaver 

When you find a beaver and steam it up nice and good, then dip it in some mayonnaise.

I'ma gonna eat me a steamed beaver.

steamed beaver by Hocobo June 11, 2015

Bred_Stealer

A blind segul that plays shooter games normally goes by bred. Also the greatest segull ever. Only gets killed by hackers.

Game ends
Friend: BRED YOU GOT 80 KILLS
Bred_Stealer: Really? I need to do better

Bred_Stealer by RandomPerson111222333 November 10, 2020

Cheesy stealer 

When you bite into someone else’s cheesy without permission (specifically after being fooled 3 times).

No! My cheesy you cheesy stealer!

Cheesy stealer by MichealJhomie January 24, 2019

Kill Stealer

Someone in a multiplayer video game who waits for someone to weaken their enemy and kills them last second so instead of the person who did all the work getting credit the the person who stole gets it.

Person 1: WOW, that's so gay!
Person B: What happened?
Person 1: This noob just stole my kill!
Person B: I fuckin hate Kill Stealers!

Kill Stealer by Urmomther January 9, 2008