dickhead vs petunia

dickhead

noun
  • The glans penis. 

  • A jerk; a mean or rude person. 

  • A stupid or useless person. 

petunia

noun
  • a homosexual 

  • Any of the flowering plants of genus Petunia, of which most garden varieties are hybrids. 

  • A dark purple colour, like that of some petunia flowers. 

adj
  • Of a dark purple colour, like that of some petunia flowers. 

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