Bob vs petunia

Bob

noun
  • A generic male person. 

name
  • A diminutive of the male given name Robert. 

  • The person or system receiving a message or signal from a source conventionally known as Alice. 

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 Bob and petunia occurred in a corpus of books? (source: Google Ngram Viewer )