stay up late

stay up late

To remain awake past one's usual or required bedtime. I had to stay up late doing my taxes because I left them until the last minute again. We let Johnny stay up late last night so he could count down to midnight with us for New Year's Eve.
See also: late, stay, up
Farlex Dictionary of Idioms.

stay up late

to remain awake and out of bed later than usual. I am in the practice of staying up late. I can't stay up late three nights in a row.
See also: late, stay, up
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • stay up until
  • stay up until (some hour)
  • stay up
  • until we meet again
  • (goodbye) until later
  • sit up with
  • sit up with (one)
  • till we meet again
  • awake to
  • awoke
References in periodicals archive
It's the perfect opportunity to go wild and discover exactly which species like to stay up late - whether you're glamping in a caravan, getting back to basics in a den or roughing it under a blanket of stars.
Bosses are also advising contestants to rest their voices and not stay up late.
Now we retire to our second house where we stay up late watching MTV, ironing oversized pants, requesting "mandatory" white shirts, and cooking breakfast while everyone else sits in the car waiting to leave.