Adjective: hand-to-mouth 'hand-tu'mawth- Providing only bare essentials
"a hand-to-mouth existence"
Adverb: hand to mouth- With barely enough money for immediate needs
"they lived from hand to mouth"
See also: meager [N. Amer], meagerly [N. Amer], meagre [Brit, Cdn], meagrely [Brit, Cdn], scrimpy, stingy [informal]
Encyclopedia: Hand to mouth