It means "have a love", and can be stated as a question.
Tengo means 'i have' if you had the phrase 'Tengo un problema' that would mean in english, 'i have a problem'
I have a brother.
I have a house
"Mijo yo tengo un novio" translates to "Son, I have a boyfriend" in English.
I have a big car.
That you are tired!!
I have a game tomorrow.
"I have a crush on a boy."
It means "have a love", and can be stated as a question.
It means: "I have on a G-string"
I have a red bedroom
I only have a heart.