A GEARU is a person who is incredibly proficient with all things technical. Be it a complicated video system, a new computer program, or simply a high tech toaster, this is the person everyone turns to for technical assistance. Some people have taken this ability to an even higher level and approach a near zen like aptitude to know what every button does on every machine. A true GEARU exudes a calm and confident aura of proficiency. They have transcended the minor label of computer geek and become the true guru of gear, the GEARU. Also known as "the keeper of the knobs".
"I've been working for hours trying to get this video system to work. No matter how many times I try to set it up it just doesn't want to operate. I guess I'll have to call Conrad, he's a real GEARU when it comes to these things."
When something (most often Japanese Media) is so messed up and/or disturbing that you can say with confidence that "only a Japanese person could think of something that gnarly"
The Anime, School Days, (and especially its ending) is the epitome of Japanese Gnar.
Otaku 1: This anime is crazy! This chick had a miscarriage and went insane! She ate the dead fetus and merges conciousnesses with it and then she starts murdering a class full of elementary school students because she is jealous that other parents children actually survived! It's great! In the end an 8 year old kid cut open her stomach and removed the fetus, which then became a massive blob of evil that devoured the mother, and then corrupts the 8 year old kid, driving them insane.
Otaku 2: dude... that is some next level Japanese Gnar shit. You're making it sound like a masterpiece, it's just a bunch of sick perverted trash.