Wikipedia
SuperKaramba is a tool, a so-called widget engine, that allows the creation of functionality enhancement modules (desktop widgets) on the KDE desktop. The desktop widgets are usually embedded directly into the background and do not disturb the normal view of the desktop. The use of SuperKaramba is not limited to KDE, but certain libraries from KDE are required. SuperKaramba had been included in KDE since version 3.5. SuperKaramba is similar to gDesklets for GNOME. The name derives from Portuguese and Spanish super caramba, meaning approximately "super wow" or "super cool" (caramba itself being an euphemism for carallo).
Together, Kicker, KDesktop and SuperKaramba build the graphical shell of the K Desktop Environment 3. In KDE Software Compilation 4, Kicker, KDesktop, and SuperKaramba were replaced by KDE Plasma 4. The graphical shells KDE Plasma 4 and KDE Plasma 5 being widget engines of their own, SuperKaramba is no longer necessary and e.g. "Kicker" was re-implemented as such a desktop widget.