flash vs cannonball along

flash is a noun but cannonball along is not a noun.

Word	Noun	Adjective	Verb	Adverb
flash	Yes	Yes	Yes	No
cannonball along	No	No	Yes	No

As verbs, cannonball along is a hypernym of flash; that is, cannonball along is a word with a broader meaning than flash:

Other hypernyms of flash include belt along, bucket along, hasten, hie, hotfoot, pelt along, race, rush, rush along, speed, step on it.

flash (noun)	cannonball along (noun)
a lamp for providing momentary light to take a photograph
a bright patch of color used for decoration or identification
a momentary brightness
a sudden brilliant understanding
a short news announcement concerning some on-going news story
a burst of light used to communicate or illuminate
a gaudy outward display
a sudden intense burst of radiant energy
a short vivid experience
a very short time (as the time it takes the eye to blink or the heart to beat)

flash (adjective)	cannonball along (adjective)
tastelessly showy

flash (verb)	cannonball along (verb)
appear briefly	move hurridly
emit a brief burst of light
make known or cause to appear with great speed
protect by covering with a thin sheet of metal
run or move very quickly or hastily
gleam or glow intermittently
display proudly; act ostentatiously or pretentiously
expose or show briefly