bugger off vs slide off

bugger off

verb
  • To leave, go away, disappear. 

intj
  • Go away. 

  • An expression of disagreement or disbelief. 

slide off

verb
  • To leave a place, a meeting, etc., without being noticed; to slip away, slip off. 

  • Used other than figuratively or idiomatically: see slide, off. 

How often have the words bugger off and slide off occurred in a corpus of books? (source: Google Ngram Viewer )