rallen
to get it, to grasp / understand (colloquial)
Origin
'Rallen' is a colloquial youth-slang variant of 'raffen' or 'kapieren' and means 'to understand, to grasp'. The word is documented as youth slang in reference works such as the PONS Dictionary of Youth Language (2007). It appears especially often in the negative, e.g. 'Das rall ich ' for 'I don't get that'.
Building blocks
Words in this expression
Examples
Ich rall die nicht.
I just don't get this exercise.