A combination of the words psychedelic and hippie put together to make one blended word that you can use when describing how one looks or how they dress.
Jimmy - "Did you know tomorrows decades day?"
Nate - "What are you going to wear Sally?"
Sally - " I was gonna raid my moms closet to find some of her old hippedelic clothes from the 80's"
The defined muscle of a toned man or a toned woman, which runs from the hip down to the crotch region (obviously more prominent and commonly seen on men, haha!). Very sexy to see on men who are ripped, or just in general!
"omg! did you see that guy with EPIC hippage!?...so sexy!"
An example as used in another term of the same meaning: Fight Club Lines: Brad Pitt with his shirt off in Fight Club. Or Jared Leto (of 30 Seconds to Mars/Requiem for a Dream fame) in Fight Club.