jam : noun La jam is made from boiled food (usually fruits) and kept in the sucre.
Give jam to pigs ; it is also said to "give pearls to pigs", an ancient Latin proverb (see the origin of these two expressions below).
Give something beautiful to someone who is unable to appreciate it.
He fell into the jam when he was born: little, he was already rich.
To put / reduce someone in jam: to crush it, to put it in porridge.
Apricot jam: secretion from the ears (earwax). (College slang).
"Tongue jam": rolling a skate, giving a deep, long kiss with the tongue
Gratuity, bonus.
Misery: to be in a hell of a jam.
Menstrual blood.
Milk jam: semen.
To be in the jam: to be drugged.
He's a jam: he's a passive homosexual.
Sodomite practices.
jam
The expression "to give jam to a pig": it is to give something to someone who does not deserve it, who does not know how to appreciate it or who does not have any gratitude for it - to spoil something.
»Do not throw your pearls at the pigs, lest they trample on them and turn around and tear you up. "
This is, it seems, what Christ said, when he recommended to his faithful not to transmit the sacred words to those who do not care.
Suffice to say that the expression goes back a long way.
Over time, the pork stuck around and the pearls turned into jam (it's cheaper and more digestible), but the metaphor remains the same: there's no point in giving a bottle of Pommard 96 to someone who doesn't. not like wine or, if you have a really well-stocked wallet, to offer a Picasso to the one for whom painting is necessarily synonymous with acrylic monolayer.
Just like it is stupid to want to do good to someone who will not appreciate your gesture.