The pinnacle of awesomeness (Origin: In 1987, Metallica's James Hetfield was the pinnacle of awesomeness. Thus, the term "'87 Hetfield" applies to anything that can be considered to be the most awesome of the awesome, the most badass of the badass.)
"Dude, you're telling me that while he was passed out in the next room, you fucked his drunk girlfriend on their couch twice AND once with a beer bottle? That's totally '87 Hetfield!"
The coolest of the cool. In 1987, James Hetfield, lead singer/guitar player for metallica, was the embodiment of cool. Awesome personififed. Can be abbreviated as '87. Used by The Dillinger Escape Plan and others in the know.