bum-sucking vs obsequious

bum-sucking

adj
  • Obsequious. 

noun
  • Obsequious behaviour. 

obsequious

adj
  • Excessively eager and attentive to please or to obey instructions; fawning, subservient, servile. 

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