Hunderttausendfach literally translates to "a hundred thousand times over". It's a compound word that vividly expresses an immense quantity or frequency.
In the song, the singer uses it to describe how often she's had a recurring dream: "Ich hatt' ihn schon oft, so circa hunderttausendfach" (I've had it often, about a hundred thousand times over). This exaggeration emphasizes the dream's persistent and overwhelming presence, making it a memorable and impactful word.
This song is about a dream that keeps coming back. The singer describes having the same dream over and over, about a person she has never really met but feels she already knows.
She wonders out loud whether this person is real or something she made up in her head. She talks about the small signs that feel like the start of something, like being asked when they'll see each other again, and not knowing yet if there are real feelings involved.
The chorus is a plea rather than a statement: don't fall in love with someone else before we get the chance to find each other. She believes something big is waiting for the two of them, even though right now it only exists as a feeling and a recurring dream.
It's a hopeful, slightly restless kind of love song, about wanting a connection to become real before it slips away.