noun, plural grand·dad·dies. Informal.
Examples from the Web for granddaddy
The influence of Oliver Stone, our granddaddy of prurient interest in political violence, hung thick in the air.The Strange World of Political Assassination Fantasies|James Poulos|September 24, 2014|DAILY BEAST
The Comedians By Graham Greene The granddaddy of all outsider books on Haiti, by the granddaddy of outsiders.
But at that moment Granddaddy Saunders's old rifle was raised and levelled at the monster.
Yes, mam, de Bill Greggs had a heap of slaves cause dey had my grandmammy en my granddaddy en dey had a heap of chillun.
The chap couldn't quite hear, but says he thinks he whispered, 'Good-bye, granddaddy.'From the Housetops|George Barr McCutcheon
Old Croaky was a granddaddy bullfrog with whom they were very well acquainted, for he sang for them every evening.Every Girl's Book|George F. Butler
Chippy Chipmunk scurried into his little house and Granddaddy Bullfrog chuckled as he crawled under a sheltering leaf.Little Jack Rabbit and Chippy Chipmunk|David Cory