Definitions of buffalo:

• noun:   meat from an American bison
• noun:   a city on Lake Erie in western New York (near Niagara Falls)
• noun:   any of several Old World animals resembling oxen including, e.g., water buffalo; Cape buffalo
• noun:   large shaggy-haired brown bison of North American plains
• verb:   intimidate or overawe
• name:  A surname (very rare: popularity rank in the U.S.: #41215)