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When you "pull a Benedict Arnold", you sell out your side and join the stronger side of a situation out of fear, not honor.

Originated from the American general during the Revolutionary War whom switched to the British side of the war after being past over by congress for a promotion.
"I seen that mother fucker hanging out with those dudes that jumped me; Pulling a Benedict Arnold."
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Jul 27 Word of the Day
the whale tail is the shape formed when a g-string rides up high over a womans trousers
oh my god look at that butt, her whale tail is showing so high!
by garv November 10, 2003
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2
When a sex partner is giving a guy a handjob, the guy ejaculates in their partners hand, then the partner slaps him across across the face with his own ejaculation.
Travis was completely embarrassed when it was revealed his ex-girlfriend had gone Benedict Arnold on him in the bedroom
by yumberlard May 05, 2009
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3
1)to become the biggest traitor in the book

2)to convince one's partner that one is going to do one of the sexual Trinity and then switch to another
1)Lebron James benedict arnolded when he left Cleveland for Miami

2)My girlfriend doesn't like vaginal, so I was givin her tail but then I pulled a Benedict arnold and went vaginal.
by JERKER19 July 18, 2010
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4
The act of switching your Facebook language to English (UK) to avoid the new Facebook layout.
Friend 1: I hate the new Facebook layout, it's so dumb!

Friend 2: If you switch to English (UK) you get the old layout back!

Friend 3: Damn turncoats! You are like a modern day Benedict Arnold, stop your whining and get over it!
by Flawless P September 23, 2011
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5
When you become a traitor and switch to the other side of a battle, argument, etc.

Mostly you “pull a Benedict Arnold.”
When the boys and the girls had a battle, Allie decided to pull a Benedict Arnold, and join the boys’ side.
by Astr0n0va November 28, 2017
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6
1)to become the biggest traitor in the book
2)to convince one's partner that one is going to do one of the sexual Trinity and then switch to another
1)Lebron James benedict arnolded when he left Cleveland for Miami
2)My girlfriend doesn't like vaginal, so I was givin her tail but then I pulled a Benedict arnold and went vaginal.
by xxxIlluminatixxx July 17, 2010
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