Savant and Whizbang

Savant noun - A person of deep wisdom or learning.

Whizbang and savant are semantically related In some cases you can replace term "Whizbang" with "Savant", this nouns are similar.

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

Savant and whizbang are semantically related in expert topic. Sometimes you can use "Savant" instead a noun "Whizbang".