Octogenarian 

Being between 80 and 90 years of age.

My Great Grandfather is a dirty old Octogenarian.
"This Veteran is an Octogenarian."

Octogenarian by Brad Wells July 2, 2005

Octogenarian 

A place or location where one fights to the death by emasculation. The game consists of two opponents who must fight using only their hands, or in some situations are given weapons, until one loses their penis and are left to bleed out to death.

"Did you call my father a ... , that's it, this Friday night at the octogenarian!"

"I think I caught something off that broad at Harris', whatever it is - it stings as though I've been in an octogenarian!"

Octogenarian by Haramarah July 23, 2016

octagenerian 

A person in the age group of 80-90s

He is an octagenerian

octagenerian by Mickypedia June 24, 2019