Verascht is a colloquial German word that means "fooled" or "made a fool of." It comes from the word "verarschen," which is a more vulgar term meaning "to screw with" or "to take the piss out of someone."
In the song, the artist sings, "Du hast mich nur verascht" (You just made a fool of me), expressing a feeling of betrayal and being played by the other person. It's an interesting word because it captures a strong emotional reaction in a somewhat informal, yet impactful way.
"Lalelu" is about a relationship that keeps circling back even though it clearly should not. The narrator calls the other person restless, always in a new city with a new man, and admits they cannot promise anything real in return. Every time the phone rings anyway, they answer, and every time they know it will end the same way.
The title comes from the "li-le, la-le, la-le-lu" hook, a lullaby-like phrase repeated through the chorus. It works as a stand-in for the pull of the relationship itself: soothing on the surface, but not something either person can actually rely on.
By the end, the narrator gives up making excuses. They say plainly that once this last time is over, it is over, even while admitting they keep saying that and keep coming back anyway.