"Mc" Labeling is the trend on Grey's Anatomy where one adds "Mc" to words or sentences. Most commonly used are McDreamy and McSteamy.
Season 1
- McBurney: The first of the trend used by another intern to describe the patient that George is performing on. (McBurney's Point is, however, an established medical term.) ("A Hard Day's Night")
- McDreamy - The nickname given to Derek Shepherd by Cristina Yang. ("The First Cut Is the Deepest")
Season 2
- McMarried - Used by George O'Malley to describe Derek Shepherd's marital status. ("Raindrops Keep Falling On My Head")
- McWhat - said by Izzie after she found out that Derek was married. ("Raindrops Keep Falling On My Head")
- McBastard - a reference to Derek after Meredith found out that he was married ("Raindrops Keep Falling On My Head")
- McSteamy The name used by Tyler Christian when meaning to say McDreamy. ("Into You Like a Train")
- McDouchey - Cristina describing Derek Shepherd for not allowing her to scrub in on his surgery. ("Tell Me Sweet Little Lies")
- McDog - The dog shared by Derek and Meredith named Doc. ("It's the End of the World")
- McLife - the term used by Meredith to describe Addison Montgomery-Shepherd's influence over her life. Addison has Derek and now her dog. ("It's the End of the World")
- McSexy - a suggestion for a nickname for Mark Sloan when he first arrived to Seattle Grace by Meredith. ("Yesterday")
- McYummy - another suggestion for a nickname for Mark Sloan by Izzie. ("Yesterday")
- McSteamy - the nickname that Izzie, Meredith and Cristina agreed for Mark Sloan. ("Yesterday")
- McVomit - the term for George's disgust of the new nickname for Mark Sloan. ("Yesterday")
- McHot - used by Alex Karev to describe Addison Montgomery-Shepherd. ("Yesterday")
- McYeah - George's assertion with the term used to describe Addison. ("Yesterday")
- McDreamy - In this case, Izzie uses this nickname to describe George being the center of Callie's attraction. ("The Name of the Game")
- McVet - given to veterinarian Finn Dandridge. ("Blues for Sister Someone")
Season 3
- McGuilty - what Cristina calls Derek following his extramarital sex with Meredith at the prom that is being hosted in the hospital. ("Time Has Come Today")
- McBaby - what Cristina calls Meredith’s suspected pregnancy. ("What I Am")
- McNasty - George describing what Derek had allegedly done with the woman in his trailer. Unbeknownst to them, the woman was Derek's sister, Nancy. ("Let the Angels Commit")
- McHottie - George's term for Derek's sister, Nancy. ("Let the Angels Commit")
- McBastard - George labelling Derek, assuming that he was having sexual intercourse with the woman in his trailer. ("Let the Angels Commit")
- McBitchy - Izzie refers to Derek's sister, Nancy, after she insinuates that Meredith is the reason for the Shepherds' divorce. ("Let the Angels Commit")
- McFrickin' Code of Silence! Callie describing when she claimed Meredith's panties off the wall ("From a Whisper to a Scream")
- McSex - Callie’s reference to catching Meredith and Derek having sex at the prom. ("From a Whisper to a Scream")
- McLove Life - Cristina's reference to Meredith's relationships ("Drowning on Dry Land")
- McCrap - Cristina describing Meredith's problems. ("Drowning on Dry Land")
Season 4
- McDreamied Cristina describing what Derek and Meredith do in the elevator ("The Heart of the Matter")
- McDreamy The name used by Norman when meaning to say McSteamy ("The Heart of the Matter")
- McSleazy Another name used by Norman when meaning to say McSteamy ("The Heart of the Matter")
- McRebound The nickname given to Rose by Addison after learning of Derek's new girlfriend. ("Piece of My Heart")
Season 6
- McAss - Meredith calls Derek McAss, because she is mad at him. ("I Like You So Much Better When You're Naked")
Season 8
- McDreary - The nickname for alternate reality Derek. ("If/Then")
Season 10
- McDreamys - Callie tells Owen that she's rebounded to the McDreamys ("I Bet It Stung")
Notes and Trivia
- The first time we heard McSteamy was from Tyler Christian when he passed on a message from Joe to Meredith that Derek was looking for her (mixing up dreamy with steamy).