OGMH Share definition Flag Acronym for "Old Gypsy Man's Hat". The sickest motherfucking crazy garage rock band. "aw man, did you hear that ogmh played a show last night at jerrys?" - "yeah dude, that was one total sonic orgasm!" OGMH by Calcularius March 19, 2017 0 0 Get merch Get the OGMH mug. Buy Now — $32.95 See more merch
