What is flack?

Some articles on flack:

List Of CSI: NY Characters - Recurring Characters - Family and Friends
... Messer "Child's Play" "Personal Foul" Samantha Flack Kathleen Munroe Sister of Don Flack "Veritas" "Misconceptions" Terrence Davis Nelly Former informant of ...
Softly With These Songs: The Best Of Roberta Flack - Track Listing
... Where Is the Love" performed by Roberta Flack and Donny Hathaway "Killing Me Softly with His Song" "Feel Like Makin' Love" "The Closer I Get to You" performed by Roberta Flack and Donny Hathaway "More ...

More definitions of "flack":