To fuck a girl so deeply (usually with a very long cock) that you bump up into her internal organs with your cock, causing much pain and discomfort for her, but a very interesting and enjoyable sensation for you!
"She screamed in agony as he gutted her with his throbbing 12" cock."
An acronym for Grand Unifying Theory, the search for a GUT is a hot topic in physics today. If found, a GUT will provide a theoretical connection between strong nuclear forces and electroweak force. It will also explain all known physical phenomena.
The lack of large enough proton accelerators has been a huge punch to the GUTs.
One of the greatest shows ever on Nickelodeon, and any other television channel for that matter. Hosted by Mike O'Malley, and head referee Moira Quirk. Three kids compete against eachother in a series of grueling athletic events. This is later finished by a race in which they climb a monsterous mountain (the Aggro Crag, Mega Crag, or Super Aggro Crag). The winner has the honor of taking home A GLOWING PIECE OF THE RADICAL ROCK.