Used as a greeting response, it means "I'm ok" and may be used in response to greetings such as "How are you?".
Patois: John: "How yuh stay?" Brian: "Mi deh yah"
English: John: "How are you?" Brian: "I'm okay"
Mi deh yah means l'm here
Patois: Dem think mi did gaawn but mi deh yah same way
English: They think I was gone but I'm still here
I am here
Slang expression usually used in response to a greeting expression like “How are you doing” or “What’s going on”. While the literal translation for this term is “I am here”, its implied meaning is similar to the expressions “I’m good”, “Not much happening so I am just here”, “Everything is ok” etc…
Patois: (Man1:) Wah deh gwaan? (Man2:) Mi deh yah
English: (Man1:) What’s going on? (Man2:) Everything is ok