Starting in the early days of the Cold War (late 40's), the CIA began a secret project called Operation Mockingbird, with the intent of buying influence behind the scenes at major media outlets and putting reporters on the CIA payroll, which has proven to be a stunning ongoing success. The CIA effort to recruit American news organizations and journalists to become spies and disseminators of propaganda, was headed up by Frank Wisner, Allen Dulles, Richard Helms, and Philip Graham (publisher of The Washington Post). Wisner had taken Graham under his wing to direct the program code-named Operation Mockingbird and both have presumably committed suicide.
One may use the phrase “You think you’re a big man for mocking me?” to ask if another thinks that they are a "big man" because they are teasing (“mocking”) you. This phrase may be used as an exclamation or/and to ask another’s intent.
A meme that got insanely popular in june 2017
It includes spongebob imatating a chicken aNd SpEAkinG LiKE tHiS It is used to reply to someone in a mocking tone
Me: You gotta stop smoking weed. It's not good for your health
*mocking spongebob picture*
Addicted friend: yOu GoTtA StOP taKiNG WeED iT's nOT gOoD FoR YoUR hEAlTh