so yesterday

so yesterday

Extremely old-fashioned. The “so” in this phrase, which dates from the late 1900s, means “extremely” or “completely.” An article about extending human life indefinitely was headlined “Merely Human? That’s So Yesterday” (New York Times, Ashlee Vance, June 13, 2010). And another, from the Globe and Mail (Montreal), had “The Traditional Job Interview: That’s So Yesterday” (Craig Silverman, April 7, 2008). For an older synonym, see old hat.
See also: yesterday
The Dictionary of Clichés by Christine Ammer
See also:
  • red hot
  • boring, silly, etc. in the extreme
  • bore (one) stiff
  • bored stiff
  • toxic waste dump
  • have a pink/blue fit
  • I can't remember the last time (something happened)
  • I'm a Dutchman
  • a no-go area
  • area