laugh like a drain vs tee hee

laugh like a drain

verb

  • To laugh with a loud, coarse sound 

tee hee

verb

  • To utter tee hee; to make a high-pitched laugh; to titter. 

intj

  • The sound of a giggle. 

How often have the words laugh like a drain and tee hee occurred in a corpus of books? (source: Google Ngram Viewer )