Flag-waving is a term used to describe a display of patriotism, often through the use of flags. The two crossword solutions for this term are 'PATRIOTIC' and 'rahrah'. PATRIOTIC is an adjective that means having or expressing devotion to one's country. Rahrah is an interjection used to express enthusiasm or excitement. Both words can be used to describe the act of flag-waving, which is a way to show pride in one's nation.