act the goat vs fuck about

act the goat

verb
  • To play around in a silly manner. 

fuck about

verb
  • To fool around. 

  • To waste time with unimportant activities, often used as an admonition to urge the other party to stop wasting time. 

How often have the words act the goat and fuck about occurred in a corpus of books? (source: Google Ngram Viewer )