scalp vs wetback

scalp

noun
  • The top of the head; the skull. 

  • The top; the summit. 

  • A part of the skin of the head, with the hair attached, formerly cut or torn off from an enemy by warriors in some cultures as a token of victory. 

  • The part of the head where the hair grows from, or used to grow from. 

  • The skin of the head of a stag with the horns attached. 

  • A bed or stratum of shellfish. 

  • A victory, especially at the expense of someone else. 

verb
  • To remove the skin of. 

  • To brush the hairs or fuzz from (wheat grains, etc.) in the process of high milling. 

  • To resell, especially tickets, usually for an inflated price, often illegally. 

  • To bet on opposing competitors so as to make a profit from the bookmaker. 

  • To destroy the political influence of. 

  • To screen or sieve ore before further processing. 

  • To remove the scalp (part of the head from where the hair grows), by brutal act or accident. 

  • On an open outcry exchange trading floor, to buy and sell rapidly for one's own account, aiming to buy from a seller and a little later sell to a buyer, making a small profit from the difference (roughly the amount of the bid/offer spread, or less). 

  • To remove the grass from. 

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 scalp and wetback occurred in a corpus of books? (source: Google Ngram Viewer )