1.an abbreviation for EXTREMMME! from the movie "Harold And Kumar Go To White Castle"

2. Also for uses such as sweet, nectar, extreme

XM which is an abbreviation of the word EXTREEEMMMEEE! from "Harold and Kumar go To White Castle"

The US's leading satellite radio service. XM will offers 121 channels of digital satellite radio as of March 1, 2004.

Satellite Radio service has been providing digital audio streamed to XM ready receivers since 2001. Currently has 6,000,000 plus subscribers who receive more than 160 channels. Premier content includes personalities such as Snoop Dog, Bob Dylan, and Bob Edwards, while also providing excellent shows such as Artist Confidential and Opie and Anthony.

Okay that was a legitamate definition. As a bonus, I will now define Sirius satellite radio:

Sirius Satellite Radio is a dumbass waste of low orbit satellite traffic that will probably go under as soon as they open up their check book to pay HOOHOO-Has-Been-Stern his first 100,000,000.00 check. Sirius offers 120 channels of digital music, unmatched NFL coverage, and a vile of aids infected blood to inject into your veins once you find out how shitty and and pathetic its audio content really is. Listen with joy and unmatched euphoria as you enjoy channels that may or may not play music that fits within the parameter of the Channel genre. Watch with awe as your brand new $300.00 S-50 Portable unit refuses to turn on because of the shoddy craftsmenship of Sirius's thirdrate manufacturer "Directed Electronics". Excercise those jaw muscles, for they will surely drop once you find out that your 300 dollar portable unit DOES NOT receive live satellite feed, but rather "Pre Recorded" audio that you have to load via the home antenna kit. And for you Howard Stern fans! You'll be entertained for hours on end as Howard bitches about h...