prat·fall 
/ˈprætˌfɑ:l/ noun
plural prat·falls /ˈprætˌfɑ:l/ noun [count] 1 : a sudden fall in which you end up sitting on the ground
▪ He slipped and took a pratfall into the mud. 2 : an embarrassing mistake or accident
▪ a politician who's known for his verbal pratfalls [=blunders]
▪ He slipped and took a pratfall into the mud.
▪ a politician who's known for his verbal pratfalls [=blunders]
