'Bunting tosser' or 'Bunts' is an informal term used in the Royal Navy to describe the sailors who hoist signal flags. Although dating from the period of signalling by flags, it has survived as a general term for naval signallers. Wireless operators may also be termed 'sparkers'.
Bunting is now a commonplace term for any small decorative flags or streamers strung on a line, but its original etymology is more specific as the worsted cloth used for flags in the Navy.
The term doesn't appear in Covey Crump, although that's a far from infallible source.
Although a naval term, 'bunting tosser' is known across the services and may be used as a jocular insult amongst Army signallers, the implication being that the person addressed is only fit for the Navy.
Famous quotes containing the word bunting:
“Revolution? Unscrew the flag-staff, wrap the bunting in the oil covers, and put the thing in the clothes-chest. Let the old lady bring you your house-slippers and untie your fiery red necktie. You always make revolutions with your mugs, your republic—nothing but an industrial accident.”
—Alfred Döblin (1878–1957)