Buster
wiktionary
Originally a dialectal variant of burster; later influenced by bust + -er. [1]
The combining form of the term has appeared from the early 20th century but been especially prolific during three periods: in the 1930s, owing to the success of the radio series Gang Busters; in the 1940s, owing to its appearance as military slang; and in the 1980s, owing to the success of the movie Ghostbusters. [2]
etymonline
buster (n.)
1838, "anything large or exceptional; a man of great strength," American English slang (originally Missouri/Arkansas), perhaps meaning something that takes one's breath away and thus an agent noun from bust (v.). Around the same years, buster (as an extended form of bust (n.)) also meant "a frolic, a spree," hence "a roistering blade" (OED's definition, probably not the way they would have explained it in old Missouri and Arkansas), which might have influenced it. As a generic or playful address to a male from 1948, American English. Meaning "horse-breaker" is from 1891, American English; hence the back-formed verb bust (v.) "break a horse."
