po-mo adjective 1noun 1forms 4 adjective1 •Syllabic abbreviation of postmodern.This is also becoming very po-mo that we've got ahead of ourselves and we've skipped over some of your fiction. — 2004 noun1 •Syllabic abbreviation of postmodernism.Po-mo has lost its grip. We can't seem to get enough mid-century modern in design, advertising and furniture (those 1929 Barcelona chairs by Mies are perennially chic). — 2001 formsmore Po-Mo · more po-mo · most Po-Mo · most po-mo