@PotomacBob
weeb
"A weeb is a derisive term for a non-Japanese person who is so obsessed with Japanese culture that they wish they were actually Japanese.
weeaboo
or weeb
WHAT DOES WEEABOO MEAN?
Weeaboo is a mostly derogatory slang term for a Western person who is obsessed with Japanese culture, especially anime, often regarding it as superior to all other cultures.
WHERE DOES WEEABOO COME FROM?
weeaboo
drawception.com
The word weeaboo came about as a alternative for the term Wapanese, a blend of white or wannabe with Japanese. Wapanese was used extensively on the website 4chan in the early 2000s to insult white people who were deemed overly fond of and biased towards Japanese culture, particularly popular exports like anime, manga, and hentai. The abusive term was added to the online Racial Slur Database in 2004.
According to Know Your Meme, Wapanese peaked in 2005, prompting 4chan moderators to apply a special filter replacing all instances of Wapanese with, arbitrarily, weeaboo.
The term weeaboo was coined as a nonsense word without any particular meaning in the comic The Perry Bible Fellowship. Thanks to the word filter, weeaboo took on its current meaning in 2005 and has spread outward from 4chan to other websites."
I suspect dweeb is an extension of weeb.