He used a variety of exclamations, including:
* "Crikey!" - This was his most famous catchphrase.
* "Wow!" - He used this often when encountering fascinating wildlife.
* "G'day!" - A friendly Australian greeting.
* "Oh, bugger!" - This was a more casual exclamation of surprise or frustration.
While "Crikey!" was his most iconic and recognizable word, Steve Irwin used a range of expressions that reflected his personality and passion for wildlife.