Slut/slʌt/ Definition 1 of 2Pro Tip 1/3Derogatory Usage The word 'slut' is often used to insult or shame someone for their sexual behavior. Her ex spread rumors that she was a slut. Pro Tip 2/3Avoid Public Use Using 'slut' can be considered offensive or vulgar, especially in public or formal contexts. He whispered the word 'slut' to avoid being overheard. Pro Tip 3/3Gendered Insult Although 'slut' targets women, modern usage sometimes extends to men with similar meaning. In a bitter argument, someone called him a 'male slut'.