Canuck is casual and should not be used in formal contexts or official documents. At the gathering, everyone cheered for their favorite Canuck players.
Pro Tip 2/3
Cultural Pride
It can express pride in Canadian identity, particularly in sports or cultural achievements. She wore her Canuck jersey to the International Day celebration.
Pro Tip 3/3
Potentially Sensitive
Though usually friendly, always ensure it's received positively and isn't considered derogatory. I hope you don’t mind me saying, you’re an amazing Canuck!