banger vs cherry bomb

banger and cherry bomb both are nouns.

Word	Noun	Adjective	Verb	Adverb
banger	Yes	No	No	No
cherry bomb	Yes	No	No	No

As nouns, cherry bomb is a hyponym of banger; that is, cherry bomb is a word with a more specific, narrower meaning than banger:

banger: firework consisting of a small explosive charge and fuse in a heavy paper casing
cherry bomb: a red ball-shaped firecracker with high explosive power

Other hyponyms of banger include cannon cracker, whizbang, whizzbang.

banger (noun)	cherry bomb (noun)
firework consisting of a small explosive charge and fuse in a heavy paper casing	a red ball-shaped firecracker with high explosive power
(British informal) pork sausage