This is the 528th most frequent Norwegian word.
verdensmester
World champion.
Here, 'verdensmester' is used literally to denote someone who holds the world champion title in a competitive field.
Han ble verdensmester i sjakk etter å ha imponert alle.
He became a world champion in chess after impressing everyone.
In this context, 'verdensmester' is used figuratively to express someone being exceptionally skilled in a particular thing, likened humorously to a world champion.
Hun er virkelig en verdensmester i å holde orden og organisere.
She is truly a world champion in maintaining order and organizing.
This usage directly refers to a highly recognized individual in their field of expertise offering advice or teaching.