Meaning of= "LONELY TEENAGE BRONCIN' BUCK" from American Pie Lyrics?

This is from the song American Pie by Don Mclean. "I WAS A LONELY TEENAGE BRONCIN' BUCK WITH A PINK CARNATION AND A PICKUP TRUCK, BUT I KNEW I WAS OUT OF LUCK THE DAY THE MUSIC DIED." IM LEARNING ENGLISH AND I WANT TO KNOW THE MEANING OF "BRONCIN' BUCK" AND " PINK... show more This is from the song American Pie by Don Mclean.
"I WAS A LONELY TEENAGE BRONCIN' BUCK
WITH A PINK CARNATION AND A PICKUP TRUCK,
BUT I KNEW I WAS OUT OF LUCK
THE DAY THE MUSIC DIED."
IM LEARNING ENGLISH AND I WANT TO KNOW THE MEANING OF "BRONCIN' BUCK" AND " PINK CARNATION" IN THE CONTEXT OF THIS SONG. THANK U
Update: I already know the part ="Teenage broncing buck":
BRONCING=Comes from BRONCO, that is a wild horse from North America.
BUCK=male of some animals.
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