bearberry vs dingleberry

bearberry

noun
  • Arctostaphylos uva-ursi, the common bearberry. 

  • Any of three dwarf shrubs of the genus Arctostaphylos, which principally grow in arctic and subarctic regions and bear edible berries. 

  • Arbutus menziesii. 

dingleberry

noun
  • Vaccinium erythrocarpum, the southern mountain cranberry. 

  • A stupid or foolish person. 

  • Dried fecal matter adhering to anal hair. 

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