conscratchulations

Soothing applications of fingernails dat you give someone's back in praise/admiration for some major accomplishment dat he's attained, such as landing a job, getting a promotion, becoming engaged/married, etc.

Garfield likes to give Jon his own unique type of "conscratchulations" --- i.e., with the help of his eighteen paws-mounted "little friends" --- but somehow Jon never seems to appreciate said laudatory gestures nearly so much as Garfield enjoys administering them to him.