a week yesterday/last (some day)/etc.

a week yesterday

A week and a day before today. I last saw Stu a week yesterday, before he left on vacation.
See also: week, yesterday

a week yesterday/last (some day)/etc.

One week before the day specified. They only gave me the assignment a week yesterday, so I'm really stressed out about getting it finished by tomorrow. Chris left on his work trip a week last Tuesday.
See also: last, week, yesterday
Farlex Dictionary of Idioms.
See also:
  • make a day of (doing something)
  • make a day of doing
  • make a day of it
  • just another day at the office
  • market day
  • many a day
  • from day to day
  • from one day to the next
  • (just) one of those days
  • day out