/god-zil'*-gram/ n. [from Japan's national hero] 1. A network packet that in theory is a broadcast to every machine in the universe. The typical case of this is an IP datagram whose destination IP address is []. Fortunately, few gateways are foolish enough to attempt to implement this! 2. A network packet of maximum size. An IP Godzillagram has 65,536 octets.