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In federal criminal cases, cooperating with the government is commonly known as a proffer agreement, interview, proffer letter, or a “Queen for a Day” letter.

A proffer agreement is a written contract between a federal prosecutor and defendant, or a person under a criminal investigation, where they will make an agreement to give the prosecutor useful information. Their statements won't be used against them later in a criminal proceeding.
John had to proffer he was looking at 45 years
Proffer by connierobinsonkc March 21, 2023
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1. Also known as "prep"
2. A proffer is a person who dresses in American Eagle, Ambercrobie, Holister, ect. This is a person who is considered popular, and loved by everyone.
3. A pathetic sadistic asswhole and or bitch.
Gossip Girl.
The Hills
The O.C
Sean William Scott
Snotty bitches
Jocks
arrogent asswholes
Ect. proffer
proffer by prephatorz! August 3, 2009
Related Words

Proffesional Asshole 

A person with full skill at being an asshole.Only men can be a proffesional asshole.Proffesional assholes are very sarcastic,and annoy people for hours.they wont stop until they see your pissed off.(i.e Me)
(Pretends to straighten tie)The proffesional asshole is here

proffessional street nigga 

Thats a proffessional street nigga!

proffesional crastinator 

A person who is good at doing anything as long as it is not productive in anyway towards the task at hand.

Ironically a professional crastinator often realizes true potential at their actual profession
**Man Aoun is so good at procrastinating he should figure out a way he can do it while getting paid and become a proffesional crastinator
proffesional crastinator by Bskoks13 February 11, 2009

proffessional hater 

a person who makes it his daily job to be a hater. spends all of his time hatin on other people, and does it proffessionally.
amy: don't worry about that. he's just a hater.
roger: more like a proffessional hater. he dont do nothin else.