i think removing the word 'only' does not convey the meaning we would like to by including the word 'only' in that phrase. (voh aise hee hai!) So what if it doesn't seem correct - language keeps changing and evolving - so when we dont have an alternative we should not hesitate to use such local modifications. Who knows - after some time - the Webster /oxford dictionary may include the phrase. Even if they dont accept it, let us use it and show that we are like that only!!