Person who arrived via time portal from the year 3045 to escape the harsh conditions of that era. A blend of all present-day races and speaks a language that is a mixture of English, Turkish, Chinese etc. Tends to work for extremely low wages, displacing hard-working present day Americans. Time-traveling had left them with goo on their backs. See also wetback
("wentback" would have made sense without the need for goo.)
"That mother-fucking gooback took my $140K-a-year logistics job for 90 cents an hour!"