growing youth has a wolf in his belly

Young people who are growing seem to be hungry all the time. My teenage son has eaten every last bit of food in the house. I guess it's true that a growing youth has a wolf in his belly.

Common Names:

Name	Pronounced	Usage
Tiriaq	-	Native American, Inuit
Zander	ZAN-dər	English (Modern)
MÜNİRe	-	Turkish
Cornelio	kor-NE-lyo	Spanish, Italian
GyÖRgyi	DYUUR-dyee	Hungarian
Cindy	['sindi]