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A phrase that is used mainly in the Great Brook Valley section of Worcester Massachusetts which means Drug Bust or Worcester PD. It is usually only used in Great brook valley for the MOB Outlaw gang who traffics many drugs through the city. When yelled a Gang war is usually the result. If an outsider goes into Great Brook valley and yells it, they will most likely be shot.

WARNING:
Even if you don't yell 5 down in Great brook valley, you still should not go into it unless you have connections.
MIke: yo I heard Joey went into Great brook valley and yelled 5 down!

Phil: Damn I hope that boys ok.

Mike: oh god no man, hes dead! He got shot by a stray bullet in the middle of a gang war!
by WESTSIDE24 July 21, 2009
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Jun 4 Word of the Day
The phenomenon of having to come out as bisexual to the same person/people repeatedly because they assumed or hoped that your sexuality was a "phase." Refers less to the holiday and more to the 1993 Bill Murray comedy film in which the main character experiences the same day over and over.
"My visit home turned into Bisexual Groundhog Day. My mom acted shocked when I told her I'm going to Pride next week, so I had to come out to her as bisexual AGAIN."
by Tiggy Upland April 15, 2014
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2
A phrase that is used mainly in the Great Brook Valley section of Worcester Massachusetts which means Drug Bust or Worcester PD. It is usually only used in Great brook valley for the MOB Outlaw gang who traffics many drugs through the city. When yelled a Gang war is usually the result. If an outsider goes into Great Brook valley and yells it, they will most likely be shot.

WARNING:
Even if you don't yell 5 down in Great brook valley, you still should not go into it unless you have connections.
MIke: yo I heard Joey went into Great brook valley and yelled 5 down!

Phil: Damn I hope that boys ok.

Mike: oh god no man, hes dead! He got shot by a stray bullet in the middle of a gang war!
by StingRayJ64 July 21, 2009
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