Bob Saget's Big As A House!

TV dad balloons by shocking 77 lbs.

BELOVED Full House funnyman Bob Saget has packed on so much extra weight, friends and medical experts fear he’s killing himself.

The formerly slender star, who is starring in Netflix’s reboot Fuller House, has piled on the flab, and insiders say he’s topping the scales at 267 pounds!

That’s a serious 77-pound weight gain for the once-scrawny sitcom dad, who is 6-foot-4!

“Bob’s really ballooned,” says an astonished pal, who notes Bob, now 60, was heavy as a kid.