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1.
Hal
A lady killer... he literally kills ladies.
Brady pulled a Hal and ate that chick alive...
by LilC2010 April 04, 2010
 
2.
Hal
A sweet amazing guy who I wish would notice me. He is sucha hottie,sweet,smart,athletic, and me and him have had a lot of special moments. He just needs to see whats right in front of him.
Hal is the perfect man for me.
by traveler13 July 19, 2011
 
3.
Highly Acidic Liquid Shits
There was an interesting article on HALS in this month's issue of the New England Journal of Medicine.

When Jerry Lewis retires, we have a deal with the networks to do an annual Labour Day HALS telethon.

More people die from AIDS, but more suffer with HALS.

No more whiskey and Thai food for me. I've got the HALS and it hurts bad.
by D. W. Floyd March 17, 2008
 
4.
Hal
a person who so plain and uninteresting, so mind blowingly boring, that it makes one want to incorporate their name into songs whenever you happen to be singing.
"Oh the weather outside is frightful, but the Hal is so delightful...."
by Sugarbean Roadhousen December 27, 2011
 
5.
hal
short for HAL 9000, the killer computer from 2001: A Space Odyssey.
Some Dude: I'm gonna wrtie a better definition, HAL.
Me: I'm afraid I can't let you do that.
by Shawn E. June 23, 2003
 
6.
Hal
1. The HAL-9000 computer, guardian of the spacecraft Discovery in the novels and films of 2001: A Space Odyssey and its sequel, 2010. First activated at the HAL plant in Urbana, Illinois on January 12, 1997 (or 1992 in the film version). HAL is short for Heuristic ALgorithmic, and not derived by moving one letter back from the initials of IBM, as some have suggested. HAL's apparently psychotic behaviour in 2001 is revealed in the novel, and in either version of 2010, to have been a result of a neurosis arising from conflicts between his programming to accurately input, analyse and output information, and the demands of national security mandated by the Pentagon.

2. Any troublesome, wary or otherwise bloody-mindedly unhelpful computer.
Open the pod bay doors, Hal.
by Fearman February 20, 2008
 
7.
hal
yer....met through frends of frends....and now i think i love him-hes so sweet...
"YAY!hals online-awesome-hal is so cool"
by Layla-yer-hal knows who i am:) October 04, 2004