double fault

double fault (plural double faults)

1. (tennis) The missing of both the first serve and second serve, resulting in a point for the receiver.
   • 2018 July 15, Jonathan Jurejko, “Novak Djokovic wins fourth Wimbledon by beating Kevin Anderson”, in BBC Sport‎^[1]:

     While reaching last year's US Open final showed he possesses an all-round game, Anderson's biggest weapon remains his serve - which he lost in the opening game against Djokovic with a double fault on break point.

2. (computing) An exception thrown by the CPU while trying to call the handler of another exception (e.g. the exception handler is invalid or the call stack has overflowed).

• (computing): triple fault