creep into vs gatecrash

creep into

gatecrash

noun
  • Part of a traditional Chinese wedding ceremony in which the groom and his groomsmen complete several difficult or embarrassing tasks prepared by the bridesmaids to prove his love for the bride. 

  • An instance of gatecrashing a party, event, etc. 

verb
  • To attend a social event without having been invited, or without having paid. 

How often have the words creep into and gatecrash occurred in a corpus of books? (source: Google Ngram Viewer )