A sexual manoeuvre whereby the woman positions herself in the form of an upward facing triangle - or pyramid - with her buttocks forming the apex. A man then arranges himself atop the pyramid, clamping his fingers around the woman's pelvis and allowing the gyratory movement caused by their lack of balance to achieve climax.
Phil - "Hey Brian what are you going to do now you've finished the Kama Sutra?"
Brian - "Well Phil... Have you ever tried the Egyptian Roof Rack? It's a new one..."
Someone or something that is VERY cool and worthy of praise. Can also be shortened to "rack". Scooby snacks are-like-totally rad, so this is an easier way to say it that describes other totally rad things.
Admirer #1: Yo, that lambo is pretty rooby rack.
Admirer #2: Dat booty be pretty rack, yo.
Admirer #3: Dang, homie. That's a true rooby rack right there.
The roof's tower of snow left behind after hastily (or perhaps lazily) clearing one's vehicle off after a snow storm. Commonly remedied by a trip down the highway.
Me: "Oh shit! Did you see that massive Revere roof rack on the way to the PotsY show last night?"
You: "Yup, I felt bad for the poor bastard behind him on 95."