Any thing or person that in it’s youth was sensually compelling, but with age has become repulsively old. Centerfold models, now elephant skinned octogenarians and wine, especially expensive and highly rated wine that you personnaly paid lots of money for, which is well past drinkability are examples of elder porn. An originally expensive tech tool that you showed off to your friends, but was quickly eclipsed and is now old and embarrassing to be seen with.
Despite its high rating by Parker and the Wine Spectator, the 1984 Ol’ Puss Won is today little more than elder porn. I paid $300 for that wine and let it rot in my cellar.