(as) straight as a ramrod

(as) straight as a ramrod

Having a very erect posture, typically accompanied by a serious or formal demeanor. He sat as straight as a ramrod at the table, glowering at me throughout the meal. She's always straight as a ramrod during class, studiously taking notes.
See also: ramrod, straight
Farlex Dictionary of Idioms.
See also:
  • ramrod straight
  • be as stiff as a ramrod
  • (as) stiff as a board
  • (as) stiff as a poker
  • get serious
  • Get serious!
  • (as) stiff as a ramrod
  • like a whipped dog
  • minor
  • in a minor key