The feeling of euphoria you get while watching the Star Wars series "Andor" and knowing it is the most superior material the franchise has produced to this point.
Watching several Law and Order episodes in a row by channel surfing. Often several different channels have Law & Order episodes and they can be watched for hours without interruption.
As opposed to the standard ORgasm, an andgasm is simultaneous climax achieved by both partners during intercourse. Particularly hard to time / pull off but immensely rewarding.
It's difficult to give an example of something that's sound-based, but I'd have to liken it to someone being forcibly anal raped, only they're just very unhappy about something.
"UGH!" "OH GOD!" "ARGH!" "FUUUUUCK!" and "FUCK ME!!" are all possible examples of an angergasm.