yanagasawa Share definition Flag nerdy asian kid. Probably plays the oboe, and is really good at math, but sucks at all sports. Person 1: Look at that kid...so weird! Person 2: I know, hes such a yanagasawa. yanagasawa by kenyanigasawa January 27, 2009 0 0 Get merch Get the yanagasawa mug. Buy Now — $32.95 See more merch