Definition of "bitching"

Encino is, like, so bitchin’

1982, Frank Zappa, Moon Zappa (lyrics and music), “Valley Girl”, in Ship Arriving Too Late to Save a Drowning Witch

The car is an older model Chevy that we think is either a dark blue or black four-door sedan. Apparently, it runs rough but has a sweet set of rims and a bitching stereo system with huge speakers mounted in the trunk.

2010, Bill Sambito, Justice Delivered, Xlibris Corporation, page 83

Were there points for who could play the most bitching guitar riff?

2012, Joanne Rock, Full Surrender, Harlequin, page 156

Besides, now Nina had a family. She had friends. She had money. She had a bitching car. She'd survived a terrifying drive in that bitching car, and there was nothing she couldn't do, or at least try to do.

2019, Abbi Waxman, The Bookish Life of Nina Hill, Penguin, page 316

Grierson's innocence – although Townsend would say it was naivety – was rather sweet and attractive amid the sour and petty bitchings of the other women.

1997, Gary Russell, Deadfall