When you buy trees from someone and they throw in a little extra. Usually applies to weed but you can say it for anything.
Lindsay: Did you get a eighth from him?

Renee: Yupp, and he hooked it up phat!

Lindsay: Let me get some free food from ur job today!
Renee: Yeah come thru, I'll hook it up phat!
by monike16 October 27, 2010
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When, in a business transaction, someone hooks you up fat, they give you more than you expect.
Every time I go to McDonalds, they hook me up fat with a free soda.
by MrNimon July 25, 2011
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I am going to have to move my computer desk across the room, because there is not a hook em up on this wall.
by VaRaine May 14, 2010
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a command to be provided with more of something
"Yo Killa D, hook me up fat with some of that sweet potato pie!"

or

-"Would you like to try some of the pea soup that I prepared?"
-"Yeah, hook me up fat."
by E Lo 11 March 21, 2008
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To go out of one's way to help or provide a service to a friend/colleague/acquaintance. Often in exchange for nothing. Another way of describing a favor or act of altruism.
For example:

'I going KFC, what you having for lunch?' 'Got no money, do you want to Hook a brother up?' 'Okay I will HBU and get a bucket.'
by james hooha March 7, 2012
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A request of information/access to something (often illegal) from one homeboy to another.
Homeboy A - "Yo nigga, I got me a fly new hat stand"

Homeboy B - "Yo yo yo my man, Hook a brother up"

by LaShaun Jackson1 January 27, 2009
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A modern term used to express the need or want of something that one, most commonly a girl used in this manner, cannot get on their own;
therefor needing someone else to get it for them.

female- "hook a sista up wit some green."
by emmmmyyyyyyyyyyyy December 4, 2006
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