1. To describe something you have no words for
2. Very good feeling
1. "Good morning, Mr. Johnson. May you have a supercalifragilisticexpialidocious day!" the students exclaimed when they saw the teacher.
2. "I don't know how to say this. I just feel supercalifragilisticexpialidocious!" Will said as he found out that he won the lottery.
Means "Alamak" in an angrier way
Walao! I forgot to sign up!
Walao eh! You did so badly!