Faneurysm Share definition Flag A lapse in ability to think or function due to extreme amounts of fangirling or fanboying "Did you see the new episode of Supernatural?!" "Of course! I think it gave me a faneurysm." Faneurysm by Wofl Iron July 20, 2008 0 0 Get merch Get the Faneurysm mug. Buy Now — $32.95 See more merch