Slang for nightclub. Derived from European pronunciation of club. Can also be spelled "clüb" (with an umlaut). Typically populated by guidos, persians, and SE Asians wearing tight, shiny clothes, or Ed Hardy shirts, who love Eurotrash trance music. Term most often used by hipsters and yuppies to emphasize the irony of their cloob attendance.
"I really need to go buy a sequined dress so I can fully rock out to Basshunter at the cloob tonight"