the things that something, especially a device or machine, has or does that are not necessary but that make it more exciting or interesting.

Your computer software may have all the latest bells and whistles, but is it good value for money?

• the eye of the storm
• the factory floor
• the facts of life
• the fag-end of
• the fag-end of something
• the fairer sex
• the fair sex
• the fat is in the fire
• the feathers fly
• the final curtain
• the final straw
• the fine print
• the [first/highest/next etc.] rung on the ladder
• the first rung on the ladder
• the first string
• the first thing
• the first thing in the morning
• the flavour of the month
• the four corners of the earth
• the four corners of the world
• the ... from hell
• the front office
• the fruit of loins
• the fruit of your loins
• the full monty