bar fly(n = noun.person) - a drinker who frequents bars;
is a kind of drinker, imbiber, juicer, toper

alder fly, american fly honeysuckle, anti-sway bar, antlion fly, apricot bar, axle bar, bar, bar absolute, bar billiards, bar bit, bar chart, bar code, bar exam, bar examination, bar girl, bar graph, bar hop, bar iron, bar line, bar magnet, bar mask, bar mitzvah, bar printer, bar sinister, bar soap, bee fly, berna fly, black fly, blow fly, breeze fly, bull fly, burrel fly, caddice fly, caddis fly, candy bar, canker fly, carob bar, cash bar, chalcid fly, chalcis fly, chinning bar, chocolate bar, coffee bar, color bar, colour bar, columbatz fly, crane fly, date bar, deer fly fever, dobson fly, double bar, dry fly, european fly honeysuckle, fish fly, flesh fly, fly, fly agaric, fly amanita, fly ash, fly ball, fly blind, fly bridge, fly by, fly casting, fly contact, fly front, fly fungus, fly high, fly honeysuckle, fly in the face of, fly in the ointment, fly in the teeth of, fly off the handle, fly on, fly open, fly orchid, fly poison, fly rod, fly sheet, fly tent, fly the coop, fruit bar, fruit fly, gill bar, golden-eyed fly, grab bar, granola bar, greenbottle fly, hanging fly, harvest fly, hemerobiid fly, hershey bar, hessian fly, high bar, hitching bar, horizontal bar, horn fly, horse fly, house fly, ichneumon fly, lacewing fly, lantern fly, let fly, let fly at, long fly, louse fly, mediterranean fruit fly, metal bar, milk bar, nougat bar, nut bar, on the fly, oyster bar, peanut bar, pinch bar, pomace fly, pop fly, pry bar, ripping bar, robber fly, sacrifice fly, salad bar, sand bar, sand fly, scorpion fly, shoo fly, slice bar, snack bar, space bar, spanish fly, stabilizer bar, stall bar, stink fly, stone fly, streamer fly, sushi bar, swamp fly honeysuckle, sway bar, syrphus fly, tachina fly, tamping bar, test fly, towel bar, tsetse fly, tzetze (or tsetse) fly, tzetze fly, vinegar fly, warble fly, warega fly, wet bar, wet fly, white fly, wine bar, wrecking bar