Refers to the
resentment or
dissatisfaction that someone feels regarding a reduced payment, either because the person thinks that he should have been charged even less than the price that the seller agreed to, or he thinks that he should be getting/keeping more funds than he is being allowed in said
transaction.
In the famous 1942 Basil
Rathbone film "Sherlock Holmes and the Secret Weapon",
Pegleg displays extreme and bitter discountent when Holmes makes HIM pay
Jack Brady the required five-pound "information-bribe" out of the ten that Holmes had already given Pegleg to bring Holmes to Jack's carpentry shop.