The point during a drum session when either the drummer himself or herself or a fellow listener gets a double kick to the face that instantly explodes on the inside in a good kind of fuzzy way. Similar to a guitargasm.
I got a drumgasm from Neil Peart and I've never heard one Rush song! How is this possible?!
The feeling of nirvana and fulfillment one gets from a particlularly awesome drum solo. I sthe feeling of being engulfed by the rythem and feeling like your body is moving just by the beat.
often accompanied with drummer face
A: Dude you were the shit on the drums tonight!
B: I know, I totally had a drumgasm about two minutes into the thrid song.