I'm smoking up on that tropical jolly green, yea Galapagos
He is smoking green (weed)
His weed is tropical (feel-good) and jolly (makes you happy)
He is smoking on the Galapagos islands
The Galapagos is a set of tropical islands west of Ecuador full of green plants. In this case tropical, jolly & green are just descriptive adjectives for Galapagos
Jolly Green was also a nickname of a helicopter flown in the (tropical) Vietnam War for rescue missions.
And for those of you that heard “tropical Charlie green”, don’t worry, it’s just an obscure Charles Darwin Reference, since he did visit Galapagos quite a lot ;)
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