Bombshell and Whizzbang

Bombshell noun - Something that makes a strong impression because it is so unexpected.

Whizzbang and bombshell are semantically related. In some cases you can use "Whizzbang" instead a noun "Bombshell".

Whizzbang noun - A small high-velocity shell; it makes a whizzing sound followed by a bang when it hits.

Bombshell and whizzbang are semantically related. You can use "Bombshell" instead a noun "Whizzbang".