[firsthand] {adj.} Fresh; genuine; from the original source. * /John says […]

[fit as a fiddle] {adj. phr.} In very good health. * […]

[fit to be tied] (1) {adj. phr.}, {informal} Very angry or […]

[flat as a pancake] {adj. phr.} Very level; very flat; having […]

[flat-footed] {adj.}, {informal} 1. Straightforward; forthright; direct; outright. * /The governor […]

[flip-flop] (3) {adj. phr.}, {informal} Involving or using a change from […]

[fly-by-night] (1) {adj.} Set up to make a lot of money […]

[flying high] {adj.}, {slang} Very happy; joyful. * /Jack was flying […]

[foolproof] {adj.} So constructed that not even a fool can spoil […]

[footloose and fancy-free] {adj. phr.} Free and free to do what […]