trackies - What does it mean?

Similar to 'trackies'

thyrsus, teargas, turkeys, trochees, torches, troughs, tricycles, terraces, tresses, throughs, tierces, theurges, thrushes, thearchs, thoraces, toruses, trashes, theorizes, torques, thrashes, trusses, trashcans, troikas, truckies, theorises, thoraxes, thyrses, trackways, trisects, threoses, triaoses, tarakihis, tarasques, teargases, tracheas, theurgies, triages, torsoes, threshes, torgochs, tarsias, treagues, tricasts, teriyakis, trochus, turkies, truckways, trackees, trishaws, threesies, tariqas, trokosis, turkises, trijugous, tarraces, turacous, turacos, turacoes, trogues, turkois, turkoises, trochisks, trochaics, turquois, trioses, thoroughs, tragics, truages, thoracics, trajects, theriacas, truckages, trousies, torroxes, thurses, traycases, troches