anorak vs spod

anorak

noun
  • A person with an unusual or obsessive interest in a niche subject. 

  • A heavy weatherproof jacket with an attached hood; a parka or windcheater. 

spod

noun
  • One who studies excessively and is disliked by fellow students because of it; a swot. 

  • One who uses talkers, an early form of chat room. 

  • One who wastes time on nonproductive activities online. 

  • A container used to distribute a large amount of bait in a single cast. 

verb
  • To fish using a spod. 

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