Phantasmagasm

To experience flashing, unrelated images in frequent succession whilst in a spasmic state, such as having an orgasm or having a fit (often drug related).

"seriously dude that shit gave me a phantasmagasm"

by Ze|ane December 9, 2008

Phantasmagasm

Portmanteau of phantasmagoria and orgasm
indicates a euphoric psychedelic experience

LSD always seems to cause the best phantasmagasms

by iamslegend233 June 10, 2013