5 fryd Share definition Flag A term used to describe someone who is comming down from the effects of XTC. Comes from E being the fifth letter of the alphebet. Dude, did you see Sarah this morning? She was 5 Fryd... 5 fryd by Snack Time March 6, 2004 0 0 Get merch Get the 5 fryd mug. Buy Now — $32.95 See more merch