An idiom referring to banana stem sap which cannot quench thirst, symbolizing efforts or solutions that fail to address the core problem.
futile endeavor / unquenchable solution / ineffective effort
kazi ya bure / zoezi ya mkono mtupu
"Kupeana ahadi bila fedha ni kama kumpa mkiu maji ya mgomba."
Translation: Making promises without funds is like offering banana stem sap to a thirsty person.