| Idiom | Meaning | Example | 
| fast track | 
the quickest route or path, short cut
 | 
There is no fast track to success in the field of photography.
 | 
| faster than a minnow can swim a dipper | 
very fast, faster than a speeding bullet, 
quicker than you can say Jack Robinson
 | 
It hovered for a minute or so, then disappeared - faster than a minnow can swim a dipper!
 | 
| faster than a speeding bullet | 
very fast, lightning fast, greased lightning
 | 
Who changes clothes in a phone booth and flies faster than
a speeding bullet?
 | 
| fastball | 
a baseball pitched at top speed (other pitches: slider, sinker, changeup, etc.)
 | 
Judd's fastball travels at about 95 miles per hour.
 | 
| fat cat | 
rich or wealthy person, rolling in it
 | 
They're the fat cats in our town. They've got tons of money.
 | 
| fat chance | 
very little chance, not likely
 | 
Me? Type 100 words per minute? Fat chance!
 | 
| fat lip | 
a hit on the lip, an injured lip
 | 
Where'd you get the fat lip? Did somebody hit you?
 | 
| fate is sealed | 
destiny was known, fate was determined
 | 
When you said you loved me,  that's when your fate was sealed.
 | 
| faze me | 
bother me, affect me, not take it in stride
 | 
When the announcer said that Rajesh had won the lottery, it didn't faze him.
He just smiled and said, "That's nice."
 | 
| faze me out | 
confuse me, surprise me, throw me for a loop
 | 
The new expressions fazed me out. They confused me.
 |