you can see plenty people use it so whats its meaning?

http://www.google.es/search?hl=es&q=oneone1111&btnG=Buscar&meta=

i learnt here about 7337 now im curious for this

any light?

It's a bit of an internet joke, it's making fun og those really excited and using a lot of ! and let go of the shift key and end up typing a 1. It just evolved from there to further silliness of actually typeing the word one, lol.

In Example, ZOMG,Il2 ROXORZ!!!!111one