Definition of "chuffed"

Then when Karen got him on her morning show he was chuffed as a haemophiliac with a foolproof razor

1992, Vincent O'Sullivan, Palms and Minarets: Selected Stories

Got to the video shop in a state / But chuffed it wouldn't be late

2004, “It Was Supposed to Be So Easy”, in Mike Skinner (lyrics), A Grand Don’t Come For Free, performed by The Streets

“I'm chuffed,” she said, putting the kettle on. He gave her that wonderful smile. “Why, exactly?” “Why do you suppose we drink so much strong tea?” “Habit. It's a drug within the bounds of the law.” “Very true!” “Why are you so chuffed, Edda?”

2014, Colleen McCullough, Bittersweet: A Novel, Simon and Schuster, page 131

As he arrived on the red carpet Michael said: 'It is my first nomination and I could not be more chuffed.' Well, he could be more chuffed. And that was if he was to win the Olivier honour.

2015, Willie Robertson, Michael Ball - The Biography, John Blake Publishing