Ripen: Verb. To become developed to the point of readiness for harvesting and eating; fully matured.

Hey, anyone remember Lukas Haas -- best known as the kid from Witness? Well, as you can see here, he's ripening very nicely into the "Buscemi of the Future." Because someday "Buscemi of Today" is going to be old, and won't be able to entertain us anymore. So we're going to need some bug-eyed, gangly weirdo to take his place. Just give him another ten years or so, 'til that Adam's apple is jutting out like a rogue elbow. Then he'll be ready!