bum-sucking vs fawning

bum-sucking

noun

  • Obsequious behaviour. 

adj

  • Obsequious. 

fawning

noun

  • Servile flattery. 

adj

  • Seeking favor by way of flattery; flattering, servile. 

How often have the words bum-sucking and fawning occurred in a corpus of books? (source: Google Ngram Viewer )