One day, I was chatting with my friend in English. We were talking about something and we both knew that we were joking. The conversation is as follows:

My Friend: I am going to watch all episodes of the Community!

Me: Wuuuuuuuut? There are five seasons in total, are you sure about this?

My Friend: Right I was just joking (Blackmoon face)

Me: I Know. I'm cooperating. Ha...

By the word cooperating, I wanted to tell her I knew that she was joking all the time, but I acted like I did not know she was joking and replied to her. I wonder if you guys could understand how I use the word "cooperating" and if I used it right. Thank you!


I think in colloquial English people would normally say something like "I was just playing along" or "I just went along with it".

play along: cooperate or pretend to cooperate

(Princeton WordNet)

Here's another idiom:

go along with the gag

To cooperate in continuing a joke, hoax, or similar phenomenon initiated by others.


(to cooperate in continuing a joke): play along


  • 1
    But there's nothing wrong with cooperating. – Colin Fine Oct 24 '15 at 11:44
  • 1
    Really @ColinFine ? I've never heard anyone say they are co-operating with a joke. It's easy to understand the intended meaning, but it is not idiomatic. I'd say co-operating is wrong. Using it, in this way - informally, with a friend - reveals that you are not a native speaker. Surely? – Dan Oct 24 '15 at 12:05
  • @Dan: I agree that it's not idiomatic. That doesn't make it wrong. – Colin Fine Oct 24 '15 at 22:40

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