noun. Gran-gran-ery. Pop-pop-age. Old-cootitude.
Related term: geezertude.
Real citation: “Given that the concerts were recorded in 2003, I couldn't be less interested in seeing the Stones cavort about in their geezeritude.”
(Feb. 10, 2004, http://www.metafilter.com/31241/Its-Only-RocknRoll-But-I-Boycott-It)
Made-up citation: “My knees are tired… My hair is graying… Damn you, geezeritude!”