Treader

A fat person, someone very fat (you can use this word if you don’t wanna call someone fat to their face just say “your a fucking treader)

“Yo look a that treader over there!” 😂

Con Treader

A Con Treader is an individual who travels to and participates in fandom conventions. Although there are many fandom conventions that are sponsored by certain ethnic groups, a true Con Treader is not limited to any particular ethnic group or race and is, more often than not, inclusive and welcoming in nature.

I believe they are traveling to San Diego for a convention after leaving Tokyo. They are a true Con Treader