verb (v)

• cater to popular taste to make popular and present to the general public; bring into general or common use(verb.communication)

  Synonym:
  generalise, generalize, popularise, popularize, vulgarize
  

  source: wordnet30
• debase and make vulgar(verb.change)

  Synonym:
  vulgarize
  

  source: wordnet30
• act in a vulgar manner(verb.body)

  source: wordnet30