This is the Jamaican equivalent of 'Is feider linn', if 'Is feider linn' meant 'Any craic?'.
The US President is in Jamaica to 'reassert U.S. influence in the Caribbean and the Americas' and addressed the crowd gathered to see him in Kingston by first saying 'Greetings massive' and then following that with the Jamaican patois 'Wha gwan Jamaica?' to a rapturous response.
Here's the rest of his introduction, during which he claims to 'just like the vibe here'.
Expect to hear this remixed into a song any second. Now if you'll excuse us, we're off to listen to some dancehall and get into a Friday vibe of our own.