Islamic Interpretation of Dreams (Ibn-i Sirin):
(Grease; Lubrication; Money; Prosperity; Tallow) If one sees himself having a fat taillike that of a sheep in a dream, it means that his livelihood will depend on the revenues of his offspring.
If one eats the fat of a permissible animal (sheep, cattle, etcetera) in a dream, it means profits or owning a sizeable business.
If one eats the fat of a non-permissible animal (beats, vultures, etcetera) in a dream, it means earning unlawful money, committing adultery, rejecting oneâs religion or fostering forbidden acts. Using fat as medicine in a dream means recovering from an illness. Fat in a dream also means joy, happiness or festivities.
In general, fat in a dream also could be interpreted to mean clean money, or net profits from which nothing is wasted.