flackflack /flæk/ noun 
1[uncountable] another spelling of flak2[countable] American English informal someone whose job is to represent an organization and answer questions about it, especially when something bad has happened: 
They spent millions on lobbyists and flacks to improve their image.
1[uncountable] another spelling of flak2[countable] American English informal someone whose job is to represent an organization and answer questions about it, especially when something bad has happened: They spent millions on lobbyists and flacks to improve their image.