thrashy Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition 1 British. Of an engine or vehicle; sounding harsh or strained, noisy 2 loud and harshsounding music performers Example Sentence The engine seems thrashy at road speeds. Synonyms noisy; loud; strained sound Antonyms silence Hear It! Say It! Write It! thrashy Switch to cursive Start Share with your friends: