The orgasm of ones' SOUL and EVERYTHING acheived by listening to the band Tool. It occurs during a certain part of the song, which lifts up your soul, projects it towards the universe, and enlightens your whole existance for that very moment. Side effects include a tingly sensation in your head/brain, and/or tears in your eyes from the beauty your ears have just encountered. The offset of the Toolgasm varies. Can be something lyrical that makes you tingle and gives you the shivers, or it could be a combination of an instrumental part with or without vocals that is utter beauty due to Maynards' voice in conjuction with the awesome instrumentals at that very moment. May cause you to melt into stuff because it makes you feel that damn good if gone to extremes.
What Toolgasms you differs from person to person. It's basically a full body experience, and when you feel it, you'll know exactly what it is.
"Dude, 8:37 of Rosetta Stoned...total Toolgasm!"
"Oh yeah? How about Parabola? It brings me to life!"