The line comes from Temp Tales: Crittah Gittahz Part 1, an entry in the Temp Tales Maine comedy series by O'Chang Comics built around thick Down East dialect humor. The bit features an exasperated old-timer lecturing a younger boy, with crittah talk typical of the series. Uploaded to meme soundboards as a short scolding reaction, it caught on because the phrase works as a universal call-out. Fans of regional New England comedy keep sharing it as shorthand for affectionate, old-man disapproval.