This essay studies the use of indirect speech acts in dialogues from mainly Sheldon Cooper from the tv series The Big Bang Theory. By analysing the character Sheldon Cooper this essay explores the challenges people on the autistic spectrum face when someone says something that they do not mean. To investigate this, the essay focuses on the linguistic rules of the locutionary-, illocutionary- and perlocutionary act. Sheldon is seen as a special character that most people are not able to relate to and is therefore both loved and hated by many. His characteristic features align with many features of autistic criteria, such as having a hard time understanding indirect speech acts, when someone says something that they do not literally mean. This results in him often not understanding when someone is being ironic or sarcastic leading to Sheldon Cooper often being the one everyone is laughing at.