na-adjective, noun
Colloquial and somewhat emphatic; used when someone has absolutely no money.
給料日前で、もうからっけつだ。
I'm flat broke right before payday.
財布の中はからっけつだった。
My wallet was completely empty.
Likely from 空 (から, 'empty') with an emphatic geminate suffix っけつ, possibly influenced by けつ (slang for 'buttocks' or 'last'), but the exact derivation is uncertain.