Playful:
* As hungry as a bear after hibernation.
* As hungry as a horse after a long ride.
* As hungry as a wolf after a long hunt.
* As hungry as a bottomless pit.
* As hungry as a teenager after a growth spurt.
Intense:
* As hungry as a starving man in a desert.
* As hungry as a shipwrecked sailor lost at sea.
* As hungry as a caged lion deprived of its prey.
* As hungry as a cornered animal fighting for survival.
* As hungry as a desperate refugee searching for food.
Other:
* As hungry as a dog with a bone.
* As hungry as a pack of wolves on a fresh kill.
* As hungry as a garbage disposal with a rumbling stomach.
* As hungry as a swarm of locusts devouring a field of crops.
* As hungry as a ghost at a feast.
Remember, the best simile to use depends on the specific context and the desired effect.