A Hispanic person not from mainland North or South America; specifically refers to Puerto Ricans.
Not all Hispanics are Sea Mexicans, but all Sea Mexicans are Hispanic.
by Harthacnut November 25, 2008
2 more definitions
Filipino of Pacific Islander of partial Spanish Descent
No, they're not Some Type of Asian, they're Sea-Mexicans!!
by tymmchn September 18, 2008
A Portugese person.
"Dude, I went to Hyannis last week and there was so many Sea Mexicans no one was speaking English."
by The_Third_Person July 10, 2008