Mob (mŎb) n. 1. A large disorderly crowd or throng. 2. The mass of common people; the populace. 3. Informal. a. An organized gang; An indiscriminate or loosely associated group of persons or things. 5. Australian. A flock or herd of animals.
v. mobbed, mob·bing 1. To crowd around and jostle or annoy, especially in anger or excessive enthusiasm. 2. To crowd into. 3. To attack in large numbers; To overwhelm.

Cyberspace (sī'bәr-spãs) n. 1. The impression of space and community formed by computers, computer networks, and their users; the virtual "world" that Internet users inhabit when they are online.