Back talk, slangily can be defined as 'tude' (4 letters) and 'STATIC' (6 letters). Tude is a slang term derived from the word attitude, which is defined as a way of thinking or feeling about something. STATIC is another slang term that refers to an argument or disagreement between two people. Both terms are used to describe a situation in which one person is speaking disrespectfully or rudely to another.