Drones, noun plural of drone. Synonyms in the same form.
Trailer
trailers, pokes, dawdlers, laggards, laggers
Hum
hums, whirs, hummings
Other
snails, slugs, monotones, meows, drudges, idlers, doddles, burdons, sluggards, mopuses, dronepipes
All synonyms for drone →