ben fuchs

As adjective used to describe a silly/goofy action

That’s so ben fuchs of him

Christopher Denham as Klaus Fuchs

Christopher's Klaus Fuchs in Oppenheimer; from Oliver in 'Argo' to nuclear spy. Same intensity, different era!

Example of how it's used in a sentence:
Person 1: Who's the intense-looking guy playing the spy in Oppenheimer?

Person 2: Christopher Denham as Klaus Fuchs, the same guy from 'Argo!' He's got espionage in his blood.

That's so Ben Fuchs

You say that after anything that is silly or goofy.

He just cannonballed in the pool. That's so Ben Fuchs.