Does it mean "retaliate"? I didn't find it here: https://www.collinsdictionary.com/dictionary/english/dish
"Another tip? Don't be afraid to stop your colleagues when they are just repeating a point you've already made. Gates says she does it to her husband all the time (and he dishes it back, too). "If a man is re-explaining -- or 'mansplaining' -- something a woman has done, stop them in the meeting, and say, 'That's okay, she already said that. Let's move on,'" she said."