F

[five o'clock shadow]  {n. phr.}

A very short growth of beard on a man's face who did shave in the morning but whose beard is so strong that it is again visible in the afternoon.

* /"You have a five o'clock shadow, honey," Irene said, "and we're going  […]

[fix someone's wagon] or [fix someone's little red wagon]  {v. phr.},  {informal}

1. (Said to a child as a threat) to administer a spanking.

Stop that right away or I'll fix your (little red) wagon!

2. (Said of an adult) to thwart or frustrate  […]

[fix someone up with]  {v. phr.},  {informal}

To help another get a date with a woman or man by arranging a meeting for the two.

[fix up]  {v. phr.}

1. To repair.

The school is having the old gym fixed up.

2. To arrange.

I think I can fix it up with the company so that John gets the transfer he desires.

3. To arrange a date that might lead to a romance or even to  […]

[fizzle out]  {v.},  {informal}

1. To stop burning; die out.

The fuse fizzled out before exploding the firecracker.

2. To fail after a good start; end in failure.

The power mower worked fine for a while but then it fizzled out.

* /The party  […]

[flag down]  {v.},  {informal}

To stop by waving a signal flag or as if waving a signal flag.

The signalman flagged down the freight train.

[flakeball] or [flake]  {n.},  {slang},  {drug culture}

A disjointed, or "flaky" person, who is forgetful and incoherent, as if under the influence of narcotics.

Hermione is a regular flakeball.

Compare: [SPACED OUT].

[flame]

See:

[ADD FUEL TO THE FLAME],

[GO UP IN FLAMES].

[flanker back]  {n.}

A football back who can play far to the outside of his regular place.