Wiktionary
flip flop
n. (alternative form of flip-flop English) vb. (alternative form of flip-flop English)
Wikipedia
Flip Flop (Modern Family)
"Flip Flop" is the 20th episode of the fourth season of the American sitcom Modern Family, and the series' 92nd episode overall. It was aired on April 10, 2013. The episode was written by Jeffrey Richman & Bill Wrubel and it was directed by Gail Mancuso.