Wiktionary
n. (context pejorative idiomatic English) An elderly person who holds views that are considered old-fashioned.
Usage examples of "old fart".
Tristan and Isolde, unlike their Wagnerian namesakes, were cheerful, rea-sonably polite, and only seemed anxious to disassociate them-selves, as far as possible, from the old fart who was escorting them.
What with the lamas and the Mystic Dragons all after him, and that old fart of a bald turtle Yulin, who's a pretentious idiot, and Father Aureole, who's no use to man or beast.
He knew the man was hooked for the offer was three or four times his present salary and twice what the lawyer had advised: Don't spoil the old fart!
He said to them, 'It always warms my heart to see an old fart like that who really likes kids.
Vinck, move up a little, you toothless old fart, you've got more room than anyone!
Sounds easy, the Wolf says, so we'll take the old fart's coin for it.
Just who do you think you are, you pompous old fart, telling me how I ought to stay home and keep house?
The old fart rigged it up with some spells, planning for something like what did happen.