spam Syllabification: (spam)Pronunciation: /spam/Translate spam | into German | into Italian | into Spanish Definition of spam noun 1irrelevant or inappropriate messages sent on the Internet to a large number of recipients. unwanted or intrusive advertising on the Internet: [as modifier]:an autogenerated spam website 2 (Spam) trademark a canned meat product made mainly from ham. verb [with object] send the same message indiscriminately to (large numbers of recipients) on the Internet. Derivatives spammer noun Origin: 1930s: apparently from sp(iced h)amspam in other Oxford dictionaries Definition of spam in the British & World English dictionary