What kind of spider is this?

Tangentially related to gaming as these buggers regularly interrupt my gaming experience by making themselves known just as my cousin and I are about to start a game. Another one announced its presence just last night as we were waiting in the lobby in Left 4 Dead 2. It's a spider, probably about the size of a coin, that releases all of its legs when it is struck. It literally ejects them when it dies, shooting them in all directions and making a bit of a mess on the floor. Does anybody know about a type of spider that does this?

Sounds like a boomer to me... In all honesty I didn't know spiders could do that!

All the spiders I've ever encountered have released their legs with little to no strength required, although they usually do it one by one. I don't understand, I thought pulling their legs out was the proper way to kill them?

what color was it? 
 
Also...just reading this topic gave me goosebumps....FUCK SPIDERS goddamn.

"GET BACK YOU EIGHT LEGGED FREAKS!!!"
 
EDIT: awesomely bad movie by the way

" what color was it?  Also...just reading this topic gave me goosebumps....FUCK SPIDERS goddamn. "

Really, any spider will do this if you hit them dead-center. No spider could SURVIVE ejecting all of its legs, so we can rule this out as a "defense" mechanism. 
 
I've hit multiple spiders (with disgusting results, almost universally) in their midsection, and seen what you describe. It certainly is disgusting, but it's a uniform thing across most spiders. Afraid it doesn't help us tag which spider you were dealing with in particular.

I feel for you man. My house has these geckos that climb on the ceiling upside down and bomb me with terds (yes, really). I have three seats infront of the television. I have to constantly look up to check if they are there, to know whether to move seat or not. When I change seat they deliberately move on the ceiling so that they are above me again. They have been pestering me for years, but this year is by far the worst... well except for last week. I found out that if you spray Detergent on them they run-away and die. It works. PETA would not approve, but I don't care. They have been making my time indoors terrible for far too long, and they deliberately shit on me so they have got to go. I can justify killing them because they kill each other anyway. They are an introduced species. 
 
Geckos eat spiders, and we already have big scary spiders sneak into our house, but since I have radically reduced the Gecko numbers there are even more scary spiders. But I don't really care, it is still worth it. No regrets. Mosquitoes are another insect that are more numerous now, but I just clap them dead so it's cool. 
 
The reason for all the intruding nature is because my house is inside the rainforest. 
 

I'm so glad you didn't post a picture.  No clue what kind of spider that is if it really ejects its legs like a fighter jet ejects its seat.

" I'm so glad you didn't post a picture. "

If you hit it dead center, than the pressure of the intense force would travel to the spiders legs which would cause them to shoot off like hairy and/or skinny rockets. Clearly this phenomenon is what inspired NASA to go into to space.

I've mashed many a spider, and I don't observe this for every species. But then, I'm an arachnophobic, so it's quite possible that I'm too scared to take careful aim and strike them dead centre most of the time. Maybe this particular species of spider is just easy to hit on the bull's eye.

Sounds to me like the rare Alaskan Exploding-Death Spider. You should probably notify your next of kin.

Oh, also, there are a LOT of spiders the size of a coin. What color is it?

" Sounds to me like the rare Alaskan Exploding-Death Spider. You should probably notify your next of kin. "

" Oh, also, there are a LOT of spiders the size of a coin. What color is it? "