A man (usually 29-35) who uses the website Ancestry.com too much. They’ve been on the site since 2008, and have collected around 30,000 names. They’ve traced they’re family lineage back to mediaeval peasants by the time you figured out your grandma’s birthday.
John: "Your mom gay"
Bill: "No you"
John: "Your family tree LGBT"
Bill: "Your ancestry incestry"
Entire world collapses on itself after John took the most intense insult known to man.