If you are new to retail and online arbitrage you may see people say “BOLO” and then list a specific item. You may also have no idea what BOLO means. Very simply, BOLO is an acronym for “Be On Look Out” and just means to be on the look out for the item they are mentioning. BOLO’s tend to be hard to find items, which can make them more valuable if you happen to be able to locate any.