I'm just disappointed for the team but I'm chuffed to bits for him.
It snuffed 'n' chuffed to beat the band, but it would n't budge for love nor money nor the man in goggles.
"pleased, happy," c.1860, British dialect, from obsolete chuff "swollen with fat" (1520s). A second British dialectal chuff has an opposite meaning, "displeased, gruff" (1832), from chuff "rude fellow," or, as Johnson has it, "a coarse, fat-headed, blunt clown" (mid-15c.), of unknown origin. Related: Chuffed.