Definition of pipe for English Language Learners. : 1  a long, hollow tube for carrying water, steam, gas, etc. : 2  a tube with a small bowl at one end that is used for smoking tobacco. : 3  a musical instrument that is in the shape of a tube, has holes along the top, and is played by blowing.
The Blood of Olympus (mentioned) Lupa is the immortal Roman wolf goddess who trains Roman demigods in the ways of Rome. She trains the demigods at the Wolf House, then sends them to Camp Jupiter where they can join the Twelfth Legion.
She plays a public school teacher and shapeshifter named Luna Garza, who gets romantically involved with one of the main characters of the series. Her indie movie Satellite of Love premiered at the Dallas International Film Festival in 2012, and her 2012 indie I'm Afraid of Virginia Wolf is currently in post-production.