quinceañero
Meanings
Noun
1. fifteen-year-old
2. teen, teenager (in general)
Examples3
¡Hoy, mi niño se ha vuelto un precioso quinceañero!
Today, my boy has become a handsome fifteen-year-old!
Tom se puso a gritar como una quinceañera.
Tom started screaming like a 15-year old girl.
No sé en qué piensa llevando un vestido así. ¡Está andando como quinceañera!
I don't know what she's thinking wearing a dress like that. She looks like mutton dressed as lamb!