Islamic Interpretation of Dreams (Ibn-i Sirin):

(Panties; Underpants) One’s underwear in a dream represents his chastity.

If one discovers wetness in his underpants in a dream, it means that his wife is pregnant.

Seeingone’s underpants soiled with feces in a dream means divorce. Wearing one’s underpants inside-out in the dream means indulging in a loathsome and a forbidden act of anal intercourse with one’s wife. Wearing one’s underpants without the underwear shirt in a dream means poverty. Wearing fancy underpants in a dream means travels or financial growth. Wearing a new set of underpants in a dream means modesty and protection of one’s chastity. Giving away one’s old underpants in a dream means relief from pressure.