Jerk (idiom)
Ruckzuck (ruck, zuck) or rucki, zucki is a phrase in the German language and means "very quickly". For example, “It was quick and easy” means - “It was very quick”.
It is often attached to a command or included in an event description to express the speed of a process. Etymologically , the expression comes from jerking in the sense of moving something and twitching in the sense of violently pulling.
"Zuck" is still related to the verb to twitch - to zockeln , which expresses a slow and at the same time restless movement (the old wagon zocked over the country road), and with whip ( to draw the sword - to pull it out of its sheath quickly ). The English also belongs to "jerk". Verb to rock (to rock), which gave the fast dance rock 'n' roll its name.
Rucki Zucki is also a song by the mood singer Ernst Neger from 1973.