A term indicating you have received and understood a message, and confirm it.

As it is used by law enforcement, using the term is a indication you suggest the receiver is a fascist.
- Please leave Sir, without making a scene
- 10-4 you fascist pig
- Fuck you hippie
by Mamas little school boy August 31, 2019
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Way Of Parting An Ending A Conversation !
I'll See You Tomorrow. Ok 10-4 !
Someone Is On The Other Line I'll Call You Back 10-4.
Ay Hitt Me Up Tonight Before You Go . 10-4
by ZoneSix December 7, 2010
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1: noun, ten·four
Phrase used as acknowledgement, either at the start or the end of a meeting between friends; can be used in place of hello or goodbye effectively.

2: adjective
Used to describe mood, person, or occasion; meaning above average or rather good.
"10-4 mate how are you?"
"I'm 10-4 thanks, did you go to the Roxy music gig last night?"
"Yeah, Brian Ferry was immense, and I pulled!"
"Cracking stuff mate, what was she like?
"She was 10-4"
"Good times, OK mate, catch you later! 10-4!"
"10-4"
by alzum July 11, 2013
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An affirmative response used in emails by douchebags who always wanted to work in law enforcement but failed the psychological evaluation.
Employer (email): The Monday morning meeting has been pushed from 8:30am to 9am. Thank you.
Employee (email reply): 10-4
by Viking Wisdom October 3, 2019
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Refering to a scale of 1 thru 10; when a person, male or female, has a smoking hot body and a not so attractive face.
Damn, that girl/guy is smoking hot from the neck down but her/his face leaves something to desire.

Yeah, she/he is definitely a 10-4
by felix badcock October 9, 2007
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It is a descriptive term used to alert fellow gentlemen of an imidiate sighting or a recent encounter of a highly attractive female specimen or simply beautiful girl.

This term is broad and can be interpreted in many ways.

This term is is used generally in public and unknown to women so fellow gentleman can speak the term in public without the target being aware.

This term does not apply to sluts, milfs, etc.
Hey boys "10-4"
by FDez March 18, 2014
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a example in which whilst playing halo or halo-2 or any other first person shooter its when u melee some one in the face u scream of yell 10-4
by rony February 15, 2006
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