extract the urine vs pull someone's leg

extract the urine

verb
  • to mock, make fun of something 

pull someone's leg

verb
  • To tease someone; to lead someone on; to goad someone into overreacting. It usually implies teasing or goading by jokingly lying. 

How often have the words extract the urine and pull someone's leg occurred in a corpus of books? (source: Google Ngram Viewer )