Will Levis’ first word was “ball.”

His nickname as a boy was Bamm-Bamm, after the super-strong, club-wielding fictional character from “Flintstones” cartoons.

“Everything he did was full throttle,” his mother, Beth, recently told The Post. “He was the classic kid who skipped crawling and walking and went straight to running and jumping and climbing. He always had a froth of sweat on his forehead.”

Levis’ bedroom growing up, first in North Attleborough, Mass., in the shadow of Gillette Stadium, and then in Madison, Conn., featured what his father, Mike, said was a “definite idolization of Tom Brady.”