rocker vs wetback

rocker

noun
  • One who rocks something. 

  • A rocking chair. 

  • A rock music song. 

  • A curved piece of wood attached to the bottom of a rocking chair or cradle that enables it to rock back and forth. 

  • A skate with a curved blade, somewhat resembling in shape the rocker of a cradle. 

  • The breve below as in ḫ. 

  • A kind of electrical switch with a spring-loaded actuator. 

  • Someone passionate about rock music. 

  • A tool with small teeth that roughens a metal plate to produce tonality in mezzotints. 

  • A curved line accompanying the chevrons that denote rank, qualifying the rank with a grade. 

  • A member of a British subculture of the 1960s, opposed to the mods, who dressed in black leather and were interested in 1950s music. 

  • The lengthwise curvature of a surfboard. (More rocker is a more curved board.) 

  • A musician who plays rock music. 

  • A rock shaft. 

  • Any implement or machine working with a rocking motion, such as a trough mounted on rockers for separating gold dust from gravel, etc., by agitation in water. 

  • A rocking horse. 

  • A rocker board. 

wetback

noun
  • A person of the mestizo race; a mojado. 

  • A Mexican or Central American who illegally enters the United States of America from its southern border. 

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