From Longman Dictionary of Contemporary Englishall-Americanˌall-Aˈmerican adjective [usually before noun] 1 TYPICALhaving qualities that are considered to be typically American and that American people admire, such as being healthy and working hard an all-American family2 DSbelonging to a group of players who have been chosen as the best in their sport at American universities an all-American football player
Examples from the Corpus
all-American• an all-American player from Stanford• Bennett is the all-American suburban mom. 