A combination of the words weeaboo (extreme anime fan/Japanophile) and derp (stupid or ignorant person).
Basically...it's used to describe a very stupid anime extremist.
Despite what some people think, there is a bit of a difference between a weeaboo and and a weeaderp.
Normal anime fan: I like Naruto! :)
Weaboo: OMG SQUEE, I LOVE NARUTO!! SO KAWAII! (/^0^)/
Weeaderp: OMG! I luuuuuuuuuuuuuuuuuuuUV animu!!! Especially this one YAOI animu called NArUto! Cuz' every1 nos that Naruto is a yaaaoi! It is KAWAII SUGOI DESUUUU ^///0///^
A combination of weeaboo and wannabe. Someone who really wants to be a weeaboo, but can't for some reason. Reasons can be everything from not having a way to watch anime to already having abandoned your culture, or even a lack of autism.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.