Half-Pound of Weed/Marijuana.

Half-Pound = 8 ounces
4 ounces = QP or quarter pound
1 ounce = 8 eigths
1 eigth = 3.5 grams.
How much u got in that brick there, son?

Well sir, I believe it to be about an HP, but we haven't broken it up yet and were about to scrape it for keef. We'll get back to you on that one later G.
by MIL specialist March 5, 2004
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House party

There's a video chat app called house party that people can go on with up to eight chatters.
"Hey, wanna hp later?"
by Krystal waters April 20, 2017
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Abbreviation for the Bay View/Hunter's Point neighborhood in south east San Francisco. SF's most notorious neighborhood, home to the RBL Posse, Big Block Records, the sco's most notorious niggaz, the infamous Hunter's Point housing projects, Oakdale projects and more. A place no outta towner should be. hunters point sunnydale
HP aint nuttint a fuck wit
by hamydeez November 5, 2004
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South East San Francisco. Home of Double Rock housing projects. Murder rates are rising and is arguably as dangerous as south bronx.
From the Swamp to H.P, my ni**as role 100 deep,-- Messy Marv
by bigblock23 February 11, 2005
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"HP" stands for the following:

A Hewlett-Packard (computer)

Harry Potter

Horsepower

Hit Points (in an RPG )
I have low hp.
by Definin March 1, 2011
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a notorious neighborhood in san francisco, arguably the most dangerous in the bay area
by YoungCali August 27, 2003
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