Tentacleware: Software which when installed on your PC gets into just about every aspect of your operating system, causing problems with other applications, and even the OS itself.
Programs like AOL, Gator, RealPlayer, and Xupiter are good examples. Not to be confused with Spyware, Tentacleware is so entrenched in your OS its hard or nearly impossible to remove completely.
Sometimes the removal of Tentacleware itself causes problems, becuase it leaves holes in the OS where it replaced a DLL file with one of its own specialized ones.
"this freaking software has its tentacles wrapped around my PC"
-or-
"this tentacleware has my Windows by the shorts hairs, and I can't get rid of it"
The act of sexually assaulting a woman with tentacles. Since no human being can really sprout tentacles, this is generally restricted to Japanese Hentai. A versatile entity, such as a robot or alien, can perform tentacle rape on multiple victims at the same time.
Guy: you're a freaky slutaren't you
Girl: yea baby, give it to me
<Guy sprouts tentacles and rapes her orfices>
"all the way through tentacle" is a phrase included in the hentai genre, where a tentacle inserts itself into a woman(typically a teenager)'s anus so far that it protrudes out of the mouth