(you) haven't lived until (something)

you will be sorry if you do not try this.

You haven't lived until you've got a personal trainer to work out with.

• look up
• look upon as
• look upon as something
• look upon someone as
• look upon someone as something
• look upon something as
• look upon something as something
• look up to
• look up to someone
• Look what the cat's dragged in!
• Look who's talking!
• loom large
• loose cannon
• loose ends
• loosen the purse strings
• loosen the reins
• loosen tongue
• loosen up
• loosen up someone
• loosen your tongue
• lord and master
• lord it over
• lord it over someone
• lose
• lose cool