is there any idiom that describes a situation?

[Anonymous]

when did u not understand my posts? u hadn't mentioned about it until ur criticism popped up to me. I don't understand why u said that any first year high school student in Shanghai has English better than mine. if my English is as worst as your saying, it was supposed to be illegible to u. I'm wondering why u were able to respond my comments

Jay, can we just drop it please? You started this thread looking for an expression in English. You didn't get what you were after, so can we move on? No need to...http://fineartbymary.com/smilies/horse2.gif">

tell me if what I wrote sounds weird in my comments

No, so let's drop it please.