Columbus /kəˈlʌmbəs/verb 2noun 2forms 3 verb2 •(slang, old-fashioned) To explore; to go around exploring, to go around as an explorer."But, boy the powers of mud, I belayve you fellers mane to make an indepindint cruise in the Orient, and go Columbusing all over the ocean boy the way ye's talk!" — 1893 •(slang, disapproving) To appropriate; to lay claim to something, especially a discovery, which is perceived as belonging to someone else.He then lists other things that have been Columbused, such as twerking by Miley Cyrus and hummus by “health conscious whities.” — 2015 noun2 •The capital city of Ohio, and the county seat of Franklin County. •A person who makes a great discovery.It is colossal. You are a Columbus of science who has discovered a lost world. — 1912 formsColumbused · Columbusing · Columbuses