American slang used for when describing a tv show character that is from another country and has been added in later seasons of the show only because the show had become popular in that country.
Americans might consider Ani from 13 reasons why an eggshell or Bela from supernatural an eggshell.
(v) Eggshelling is when one or more parties engage in sexual intercourse with a woman, eventually ejaculating onto the top of her head, then waiting for a period of time for it to harden (normally takes 4-5 healthy men about 3 hours to accomplish) After the time it takes to harden, the men take turns donkeypunching the eggshellee in the back of the head to crack the headwarmer they created.
(Also Commonly known as the Cum-Helmet, Skeet-Hat, and Dapper Dan's Skull Cap of Fun)
Jamie Eggshelled me last night and now my hair is filled with sperm and i have really bad bruises on the back of my head.
I DARE you to eggshell that chickenhead, make her smazz or you haven't done it right, ya hear?
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.