Means swear to god. Every Somali says it this way. You won’t find a Somali saying it wallah. Instead of wallahi. But however there are Arabs who say wallah and words like yallah. Arabs have adopted into say it into this way
even though we already have a way authobillah💀But Somalis have
changed it with an hi at the end the same way the changed the
name abdullah to abdullahi at the end. I bet if they heard the word yallah they would change it into yallahi😭😭