isr.co.ro : glossary Flood To overwhelm a mailbox, newsgroup, Internet Relay Chat (IRC) channel, or other network resource with messages, particularly as a deliberate act of disruption. More informally, this process is known as bombing. Although it's sometimes done for what senders consider a good reason, such as retaliating against a spam, where someone sends out messages to inappropriately large number of newsgroups or mailboxes, the result is often system overloads that have an equal or worse effect on innocent bystanders.