birkie Definition

triathlon, telemark, nordic, ultramarathon, slalom, biathlon, skijoring, nordic combined, snowshoe, giant slalom, nordic skiing, biathlete, alpine, skiers, enduro, racewalking, hill climb, ironman, mushing, downhill, triathlete, snowmobile, ski jump, bobsled, racers, sprint, monoski, regatta, alpine skiing, luge, mtb, bonspiel, sled dog, motocross, ski jumping, mountain bike, snowboard, marbler, arlberg, speedskater, bobsleigh, piste, grossglockner, speedskating, sleds, ullr, iditarod trail, hinault, downhiller, marathoning, dog sled, timberman, kermesse, stian, footstock, mountain biker, bloomsday, flagstad, longboarding, rodeo, stenmark, super giant slalom, toggenburg, canoer, rallycross, cim, coloradan, races, crosscountry, curlers, severy, speed skater, lillehammer, skating, nys, etape, flying lizard, cycling, mountain biking, nanook, snowmobiling, tinman, narrow gauge, jungfrau, fourteener, broomball, voyageur, moto, grete, zermatt, albula, cairngorm, montanan, lefse, biking, luging, banana belt, oudenaarde, skaters, fassa,