Nasty (slang) Type: adjective, slang Pronunciation: /nast-e/ What does Nasty mean? 1. To be disgusting. Nasty Synonyms: Icky, Trash 2. To be dirty sexually. Nasty Synonyms: Freaky, Slutty Example sentence: “The rice in the fridge is nasty.” Nasty in songs: “We get nasty, I’m her daddy, she know a nigga ain’t average” – Shy Glizzy, […]