facer

noun4

1. •
   (slang) An unexpected and stunning blow or defeat.

   • “You're such a snob,” she said, with a provoking laugh; coming from the family he was thought to be snobbish about, this was a bit of a facer. — 2004
2. •
   (slang) A serving of alcoholic drink; a dram.

   • Dory[…]poured a little whisky into a glass, and grew reminiscent. “I had a facer myself this morning before I came down,” he said.
3. •
   (slang, no longer used) A blow in the face, as in boxing.
4. •
   (no longer used) One who faces; one who puts on a false show; a bold-faced person.