maroon on an island
maroon (one) on an island
To cause one to become stranded or stuck on an island. The captain will maroon us on an island if he insists on sailing in these dreadful conditions.
maroon someone on an island
to strand someone on something; to abandon someone on something, such as an island. The pirate captain marooned his first mate on a small island in the Caribbean. Through a navigation error, I marooned myself on a tiny island east of Guam.