Itachari

Well you know what an Itasha (痛車) is but what do you call one of these?

These are known as Itachari (痛チャリ) and can usually be seen dotted around Akihabara.
痛 (ita) = pain
チャリ (chari) = Bike

So why are cars or bikes that are plastered with anime characters labeled with the word "pain" ?
In Japan, Otaku are still looked down upon as being uncool and having these stickers on ones car or bike is seen as "painfully embarrassing" - so now you know.
Looks cool to me though and would love to do my bike up like this. Picture taken of this Sumomo Itachari by Frankie.