"What you egg! [He stabs him.]" is a quote from William Shakespeares tragedy Macbeth, first performed in 1606. The quote became popular online due to its odd phrasing and the violent action that follows it. In the play, the line is spoken by a murderer who is about to kill a child. The word "egg" in this context means "young and inexperienced". The murderer uses the word "fry" after "What you egg!" to refer to the child as a small fish or bird, a creature of no consequence. The line "What you egg!" and other bird references in Act 4, Scene 2 of Macbeth are part of a whole body of bird imagery in the play. The line is often used as a meme or joke online, but it is important to remember its violent context in the play.