1) ISP stands for Internet Service Provider aka the company that supplies you with your internet, drr.

2) ISP also stands for I Smell Pussy. You can write this whenever someone online is being a pussy and won't do something.
1) "What's your ISP? Maybe that's why your connection is so slow."

2) Massa J: "Let's go play some CS:S"
Doobie: " I can't man, I have homework."
Massa J: "ISP"
by Doobie Smokes You January 31, 2005
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Abbreviation for I Suck Penises, 'nuff said.
person1: ISP
person2: O.O
by Flitzepeng September 25, 2010
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I Smoke Pot.
A clan and server in Counter Strike Source who love to smoke pot and play CSS all day.
SERVER IP: 96.236.129.118:27015
I went and played in ISP's server today, it was awesome! I'm gonna add them to my favouries!.
by Campblett January 18, 2009
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Internet Survellance Point
by d4x July 11, 2008
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Acronym for "instrument of sexual pleasure"; a name given to someone who is being used in a relationship. Also can refer to male or female genitalia.
"Guuurrl, you ain't nothin but an ISP!"

"Hope that bitch can handle my ISP!"
by BorntoFolk September 21, 2011
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The isp, who could neither read a map nor drive a car, exchanged her services with a taxi driver and was able to travel to country towns and forest parks before the week end.
by CriostoirHulme August 8, 2005
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