| fall out of the ugly tree and hit every branch |
| fall short |
| false light |
| fancy one's chances |
| far and away |
| fare thee well |
| fart fan |
| fashionably late |
| fat chance |
| fat of the land |
| feast or famine |
| feather in one's cap |
| feeding frenzy |
| feed the fire |
| feel free |
| feel someone's collar |
| feet of clay |
| fence-sit |
| fetch and carry |
| few and far between |
| field day |
| fifty-cent tour |
| fighting chance |
| fight shy |
| fill one's boots |
| fill someone's shoes |
| filthy rich |
| final say |
| find it in one's heart |
| find one's feet |
| find the net |
| fine line |
| finger to the wind |
| fire-breathing |
| fire sale |
| firm up |
| first loser |
| first-mover disadvantage |
| first-rate |
| fish-eating grin |
| fish out of water |
| fit for a king |
| fit to wake the dead |
| fix someone's wagon |
| flannelled fool |
| flash for cash |
| flat strap |
| flea in one's ear |
| flip one's lid |
| flip the bird |
| flog the log |
| floor one could eat off |
| flutter in the dovecote |
| fly by |
| fly in the face of |
| fly off |
| fly out of the blocks |
| fly the flag |
| fold like a cheap suit |
| fold up |
| follow the money |
| food baby |
| fool away |
| fool's paradise |
| for a change |
| for all the world |
| force down someone's throat |
| for chrissake |
| for fear of |
| for fuck's sake |
| forgive and forget |
| for good and all |
| for heaven's sake |
| fork off |
| for once |
| for one thing |
| for shits and giggles |
| for that matter |
| for the chop |
| for the love of |
| for the plot |
| Fort Knox |
| forward-leaning |
| foul up |
| four-minute warning |
| four score and seven years ago |
| fourth wall |
| fox's socks |
| free ride |
| freezing cold |
| fresh-faced |
| fresh out of |
| friends in high places |
| frig it |
| from A to Z |
| from central casting |
| from home |
| from pillar to post |
| from the cradle to the grave |
| from the get-go |
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