Gilligans Island
Bob Denver, who played Gilligan on the TV show, Gilligan's Island, was American. The character, Gilligan, was also depicted as American.
If you're meaning from the Biffy Clyro song then the reference is to the character Gilligan from the TV show Gilligan's Island. The character was accused of having 'glazed eyes' and an innocent view of the world.
Bob Denver
Ginger from Gilligan's Island Gigi, from the movie of the same name
http://www.bobdenver.com/
"Gilligan's Island".
Gilligan's Island was a comedy show that features the members of a tour boat that crashed on a deserted island. On the show, whenever the castaways got close to getting off the island, Gilligan would accidentally mess up their plan.
Gilligan's Island
Gilligan's Island
Gilligan's Island
Gilligan's Island
Gilligan's Island