Possible Exclamation by Beaver Cleaver

This page is the CodyCross answer for the clue below from Treasure Island, Group 1037, Puzzle 4 (Thar She Blows).

Question is: Possible Exclamation by Beaver Cleaver

and the answer is: GEEWHIZ

Word Meaning:

GEE WHIZ — (US, dated) An expression of surprise, enthusiasm, or annoyance: wow or so what?

Definitions from Wiktionary.