come upon the town phrase3 •(US) To receive public charity; to have one's living supported by public funding.While Brimfield people have never been very rich, they have been prudent and thrifty, and there have been very few so poor as to come upon the town for support. — 1879 •(US) To make one's debut in town society; to become (known as) a man or woman about town. •(UK, no longer used) To become a prostitute; to turn to prostitution.