>>While some have pointed out that no Eagles players actually knelt for the anthem this year
The majority were taking the knee on this event and da-mayor is taking the piss.
https://en.wikipedia.org/wiki/Taking_the_piss
Taking the piss is a Commonwealth term meaning to take liberties at the expense of others, or to be joking, or to be unreasonable. It is a shortening of the idiom taking the piss out of, which is an expression meaning to mock, tease, joke, ridicule, or scoff.