fake it
1. To act as though one is knowledgeable or competent in some area. A: "I'm panicking and can't remember any of the steps to the dance routine!" B: "Then just get in the back and fake it!"
2. To behave in a manner contrary to one's emotions. She always seemed so happy, but she told me that she's really been faking it all this time.
3. slang To fake an orgasm. I can't believe so many of my friends fake it.
fake it
to pretend (to do something). If you don't know the right notes, just fake it. I can't fake it anymore. I've got to be honest with you.
fake it
tv. to pretend (to do something). If you don’t know the right notes, just fake it.