checken
to understand / get it (youth slang); colloquially also 'to check, verify'
Origin
Borrowed from English 'to check' ('to verify, control'), formed by conversion from the 'Check' plus the German ending '-en'. The youth-slang sense 'to understand, to get it' is a German semantic extension that does not exist this way in English (per Wiktionary partly by analogy with 'to check in/out'). Alongside it, the literal sense 'to check, look up' survives colloquially.
Building blocks
Words in this expression
Examples
Hast du gecheckt, was er gemeint hat?
Did you get what he meant?