when the appearance of someone, usually the opposite sex, seems to be, on a scale from one to ten, a ten from far away, but when approaching the person you unfortunately realize they are merely a four. You may experience the feeling of disappointment.
KiKi: damn, that man is fine
Susie: na girl, he's a 10-4
by best girlz February 8, 2010
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Means Ten Four
Actnollegment of a statement
That was a nice shot!

10 4
by b December 12, 2003
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elite verison of Ok boomer but seems better :P
older person: yoo i remember this song, it's soo nostalgic

person: 10-4 dinosaur
by EvilTrivago February 18, 2020
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4-10-4 is a term to describe a female who within the general public is a "4-out-of-10". But within a subculture scarce of women, she is a "10-out-of-10". Only to go back into the general public and be a '4' again. This is usually used within a military or paramilitary environment where women are scarce. However, this can be used in any male-dominant subculture ie: Gaming, fighting, constructions, cosplay, your pokemon card gatherings, faggot!
Bob: Have you seen our new sergeant Christine? She is so sexy!
Gary: Nah, dude she is busted! A traditional 4 10 4
by AR0438 January 1, 2017
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In the CB slanguage:

1. Hi there!

2. Enthusiastic agreement.
1. I just wanted to say a big 10-4 to ya!

2. That's a big 10-4!
by Downstrike May 29, 2004
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The rule in rugby union (section 10, paragraph 4, part k) that lets a referee penalise "unsportsmanlike behaviour", which is handy if you have nfi why you just blew the whistle. From the players' point of view, it's a bit dodge because it gives the ref the power to blow anything. It is perhaps this frequent blowing that has led to speculation that all referees are gay.
If i had the power i would 10, 4, k the shit out of george bush for being a moron.
by stop_____hammertime May 19, 2007
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Common trucker term used to confirm agreement

"sounds good " "definitely"
Jim:be at the truck stop in ten
Rick:that's a Texas 10-4
by Ck94 February 6, 2017
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