The last two lines of the song were about balling, so Breezy used the Basketball team “Boston Celtics” to enhance the term “Balling”

Spalding is a company that makes basketballs. Since the last line was about balling, Breezy used the word “Spaldin'” As a term for Balling.

This is a play on words, referring to the last line “Niggas know that im ballin'”. Balling is slang for having lots of money but it could also mean playing basketball, so to enhance the line, Young Breezy added the basketball player John Wall.

The term “Flossin'” is a term for showing all of what you got, but Breezy is using a play on words when he says “dental” because Flossing can go both ways.