When you see "As ___ as ____" you are looking at a simile, not an idiom. A simile is just a way of comparing two things in a vivid way. In this case, you're comparing something to a dry, hard bone. In other words, this thing is very dry.
'Bone dry' derives from an allusion to the dryness of bone after being left in the sun. Basically just means something is very very dry.
Similes for dry: As dry as a scorching desert. Dry as a bone. Dry as the Sahara.
It can be, meaning without water, or arid, or not damp. Dry is also a verb (to dry) meaning to remove water or other liquid, or to dehydrate.
they are cousins
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This means very dry/thirsty Give me a drink I'm as dry as a bone! Look at this firewood it's as dry as a bone.
Dry As a Bone was created in 1987-07.
It is two words: bone dry.
As dry as a bone.
Similes for dry: As dry as a scorching desert. Dry as a bone. Dry as the Sahara.
its as dry as bones
its as dry as bones
Dry as bone, there is no water except at the South Pole.
The cast of Bone Dry - 2011 includes: Laura Grey Jordan Klepper
The cast of Bone Dry Blues - 1922 includes: Billy Ruge
Osteomyelitis is the medical term meaning infection of bone and marrow.
osteoblasts. osteo meaning bone and blast meaning to create