1) Someone who is extremely whack, unattractive, or just really dusty.
2) Someone sub-par, rudimentary in nature, and super dee-dooper lame.
3) Someone who is an invalid and dumb as that thang.
4) Someone who is broke down, busted, riding in the passenger's seat, or who is just pain effed up.
"Yo, he is hellaz busted. That fool hella goo."
"50 Cent is mad corny now. His rhymes extra goo."
"My bestie's new boyfriend is toe up and mad goo."