The most complete and utter shit to ever be invented. If you can even say that, they just steal shit from flash movies and try to make a buck on them.

They appear at least every break and last ages, some (VH1,MTV, formerly Comedy Central) had them 2 and sometimes more a break.

The target audience is probably 10-16 year old retards/stoners (note vh1)
TEXT PIMP 01 TO SPAMONTV
by JAMSTER SUX ASS July 4, 2005
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a piece of shit company that will somehow find out your phone number and run up your bill without your knowledge.
my texting was blocked, but somehow jamster managed to still send me their dumb shit.
by J.Nasty May 23, 2007
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Many people do not know this, but Jamster was acquired by VeriSign in 2004. VeriSign maintains the DNS database for all the .com and .net domains worldwide. So the same company that lets you visit urbandictionary.com is slowly destroying your brain with Jamster commercials.
<Roger> Hey man, this Jamster commercial is annoying.
<Tim> Huh, what did you say? I was too busy listening to the sound of my brain imploding.
by A Jenks June 21, 2005
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probably the most annoying commercials ever created with the most retarded ringtones and wallpaper for your cell phone. created for fucktards of america.
you might find yourself ordering the 'sir mix a lot' ringtone while very drunk or stoned late at night watching mtv, then you wake up in the morning and feel like you have been cheated out of life.

drunk person: "man last night i think i got jammed"
by val February 2, 2005
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A ringtone company that is responsible for producing the most unbearably irritating commercials to have ever plagued television. Most hideously annoying of all is that sodding "frog" (which resembles a swollen tumour given eyes, a helmet, and tiny genetalia with a "Censored" tag crapped across it), whose high-pitched squealing, ridiculously annoying animations and general nature, all proves that Jamster is making their profits from a DELIBERATE attempt to drive people insane. So far, for many audiences, it's working.

Aside from that sodding amphibian that's become Jamster's most infamously irritating mascot, Jamster provide equally annoying ringtones, wallpapers and screensavers, many of which are crass, crappy, and/or lame, 4-5 frame animations. Anybody willing to waste money for something that was directly manifested out of pure hate, evil and a company's desire to further shove one more annoying commercial into the TV network's already over-bloated advertising market... need to be cleansed from the human gene pool.
Watcher #1: "Oh shits, not that fucking Jamster commercial! SHIT, where's the fucking remote?!"
Crazy Frog: *mimics a DJ whilst squeaking in pitched tones*
Watcher #1: "Ah, shit! I can't find it! Quick, do SOMETHING!"
Watcher #2: "AAAARRGGGGH!!" *hurls a baseball bat into the TV-screen*
Watcher #1: "That's the third fucking television Jamster's caused me to break. Fuck, I need to start keeping track of where the remote's kept."
by Alhadis May 25, 2005
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Really STUPID COMMERCIALS THAT APPEAR ABOUT 3000 TIMES A DAY ON MTV ALONE AND THERE IS NOTHING WE CAN DO ABOUT AHHHHHHHHHHHH!!
Larry: Hey dude listen to my Jamster Ring t-
Bob: (fires magnum at larry)
by Oz January 18, 2005
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Possibly the closest thing to e-mail spam on television. Advertises their awful "Crazy Frog" ringtone on just about every music channel in the UK through a series of incredibly annoying commercials.

The Frog looks even stupider now thanks to dumb Christians who couldn't handle it's genitalia.
On VH1 Classic for example, Crazy Frog adverts are shown like twice every break.

Not to mention Jamster also makes ringtones for the newest hits out there, such as Britney Spears and 50 Cent, and advertises them on VH1 Classic, of all channels. Doesn't make much business sense to me.
by ATH April 9, 2005
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