himself vs thingamabob

himself

pron
  • He; used as an intensifier, often to emphasize that the referent is the exclusive participant in the predicate 

  • Him; the male object of a verb or preposition that also appears as the subject 

  • The subject or non-reflexive object of a predicate; he himself. 

  • The subject or non-reflexive object of a predicate; he (used of upper-class gentlemen, or sarcastically, of men who imagine themselves to be more important than others) 

thingamabob

noun
  • A thing or person whose actual name is unknown or forgotten. 

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