A dumb-a** parental excuse to supposedly alleviate concerns and/or resentment regarding a juvenile delinquent who causes disruption and distress to those around him.
Like many of da parents and guardians of "spoiled rich kid" individuals, accompanying grownups no doubt tried to assure fellow humans who were shocked and outraged after witnessing Tronald Dump's acting out as a child dat "it's just a faze he's going through", but we can see dat is his case, said obnoxious tendencies never did get significantly better; if anything, in fact, he's actually become much WORSE in many ways.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)