“Tonight Show” host Jimmy Fallon on Thursday pitched an alternative way President Donald Trump could put Venezuelan oil to use after the U.S. sold its first batch — valued at $500 million — this week.

“Apparently, the extra oil has been great for getting Trump in and out of the MRI machine,” quipped Fallon in a nod to the president’s claim that he had an “absolutely perfect” MRI last year. (Trump later told The Wall Street Journal that he actually got a CT scan instead of an MRI.)

Moments earlier, Fallon used the U.S. military’s recent middle-of-the-night attack on Venezuela to tease the president, who has escalated his threats to take over Greenland in recent days. A new poll from Quinnipiac University found that 86% of Americans are against the U.S. taking the Arctic island by force.

“Everyone was like, ‘Now, Donald, if you want Greenland, you have to finish your Venezuela, first,’” Fallon joked.

“Not surprisingly, 100% of Greenlanders are against it. That’s right, both of them.”