euchre vs string on

euchre

verb
  • To deceive or outwit. 

noun
  • A trump card game played by four players in two partnerships with a reduced deck of 24 cards. 

string on

verb
  • To continue to convince (someone) of something untrue; to maintain a lie or scam aimed at (someone). 

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