faff around vs hang out

faff around

verb
  • To waste time; spend time idly. 

hang out

verb
  • To spend time doing nothing in particular. 

  • Used other than figuratively or idiomatically: see hang, out. 

  • To lodge or reside. 

How often have the words faff around and hang out occurred in a corpus of books? (source: Google Ngram Viewer )