ramrod (ramrods plural )
1 n-count A ramrod is a long, thin rod which can be used for pushing something into a narrow tube. Ramrods were used, for example, for forcing an explosive substance down the barrel of an old-fashioned gun, or for cleaning the barrel of a gun.
2 If someone sits or stands like a ramrod or straight as a ramrod, they have a very straight back and appear rather stiff and formal.
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like a ramrod/straight as a ramrod phrase
...a woman with iron grey hair, high cheekbones and a figure like a ramrod.
3 adj If someone has a ramrod back or way of standing, they have a very straight back and hold themselves in a rather stiff and formal way.
ADJ n
I don't have the ramrod posture I had when I was in the Navy.
Ramrod is also an adverb., adv ADV adj
At 75, she's still ramrod straight.