FEHO Share definition Flag (F)emale (E)quivalent of a (H)ard (O)n. Acronym created because it is kind of weird and unattractive when a woman says "i just lost my hard on"Pronounced: fee-ho When I saw Jake picking his butt crack i totally lost my FEHO for him FEHO by MAMP1984 December 24, 2010 0 0 Get merch Get the FEHO mug. Buy Now — $32.95 See more merch