mullet vs true bug

mullet

noun
  • A fish of the family Mullidae (order Syngnathiformes), especially the genus Mullus (the red mullets or goatfish). 

  • A person who mindlessly follows a fad, a trend, or a leader. 

  • The rowel of a spur. 

  • A hairstyle where the hair is kept short on the top and sides and long at the back. 

  • A fool. 

  • Any of several species of freshwater fish in the sucker family (especially in the genus Moxostoma, the redhorses) 

  • A star with straight edges and usually with five or six points. 

  • A fish of the family Mugilidae (order Mugiliformes) (the grey mullets). 

true bug

noun
  • Any of various insects of the order Hemiptera and in particular of the suborder Heteroptera, that are wingless or have two pairs of wings, and have mouthparts adapted for piercing and sucking. 

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