What does Cristiano Ronaldo's goal celebration mean?

When Cristiano Ronaldo scores goals, he usually marks them with a particular celebration. So, what, if anything, is the meaning behind it?

Cristiano Ronaldo's Response To Myrto Uzuni Copying His Goal

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Cristiano Ronaldo gives Alejandro Garnacho permission to do iconic

Alejandro Garnacho: Manchester United youngster mimics Cristiano

Cristiano Ronaldo marks two-goal performance with new celebration

What does Cristiano Ronaldo's signature 'siu' celebration mean

Cristiano Ronaldo's goal celebration - explained

Cristiano Ronaldo celebration: Is this real reason star stroked

Cristiano Ronaldo fumes as Ghana star scores against Portugal at