I never listened to that song, always assumed it was about Gerald Ford
Reminds me of an old parody of a Mazda ad, can't find it on YouTube but it's got the jaw harp and the chorus
Piston engine goes (jaw harp music)
But the Mazda goes (prolonged fart)
"I got a Mazda the other day and I just recently learned to pray
'Cause if this turkey makes it from here to there
I'll publicly pull out my pubic hair"