A score made famous by Jon Hendriks, in a Counter-Strike: Source scrimmage. He did not get any kills, but managed to kill a teammate in the process. After further embarassment, Jon is still ridiculed by this lousy score to this day.
*Terrorists Win*

DP:gg guys
other team:gg

*In Ventrilo*

Jon H: Wow, gamer.
Jon G: Jon, you fucking suck, -1 and 7, you scrub.
Ryan R: urrite mang
by JDGersdorf May 16, 2006
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Referring to a murder of a person or persons over a police scanner.
Breaker Breaker 149, WE GOTTA 1 8 7 in the southside
by Edage June 6, 2007
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Code for (1)murder, (8)death, (7)kill...
...."It's about coming up and staying on top....and screaming 1 8 7 on a mother fucking cop".....-Sublime
by johnjohnbong July 5, 2007
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aka AIG, meaning Almighty Imperial Gangsters, one of best and well known gangs in the chicagoland area.
guy1:"ey jo what u be taggin on that wall?"

guy2"1-9-7 maan, GANGSTER KKRAZY !"
by bobby chilly March 2, 2009
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Refers to Hill 187 separating North and South Korea. Hill 187 was the site of the Battle of Hill 187 during the Korean War. 1 8 7 means a massacre.
I 1 8 7'd that (expletive deleted). He wont be comming around anymore.
by David G Chan November 24, 2006
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A algebraic equation useful for determining the youngest age-cutoff a female may be before the guy dates her. Let X equal the male's age ( Or female, if she's older.), while Y will represent the youngest age of a female a guy may date.

Next, identify the male's age and replace "X" with it. Suppose Jim was 15. We write it like this:

1/2(15)+7

Now, the Order of Operations principal applies here! Divide one by the two to get one half, and then find half of fifteen. Don't forget to keep the seven; It would be disgusting if Jim dated a 7.5 year old!

7.7+7

Add the number, matching up the place value carefully, and there you have it; Jim may date a 14.5 year old girl if he went for younger women.
If you are shit at math and/ or the 1/2X+7 Rule, here's a table for you, you lazy fucktards.

Male: Female:

15 14.5
16 15
17 15.5
18 16
19 16.5
20 17

Etc... So on, and so on. The coefficient is 1/2, while the constant is 7.
by BeerChuggin'German May 23, 2010
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A dance one does when Rockefeller Street comes on where both arms go in a diagonal direction upwards, then on the other side, back to the other side but do it twice, then back to the other side, and repeat. This dance originated from 2 kids doing this dance to this song.
1 2 7 3, down the Rockefeller street
\(•~•\)
(/•~•)/
\(•~•\)
\(•~•\)
(/•~•)/
by Halosurfer21 November 27, 2018
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