Shag Up
A mash-up of shack up and shag, meaning "sexually-active cohabitating"
I knew it! Nikita was going to shag up with Micheal sooner or later.
shagged up
an individual with a rugged appearance; one with a homeless look about them; homeless couture.; one without taste of fashion sense; someone who looks as if the wore their clothes to school everday.
"Yo kid, you seen britney at the VMA's? Man, homegirl was lookin shagged up, NO lie!"