Reference: The Urban Dictionary

1.     janky     
    
(adjective) inferior quality; held in low social regard; old and delapidated; refers almost exclusively to inanimate material objects, not to people

"We tried to pick up on these girls waiting for the bus, but I was driving my sister's janky 1989 geo metro so we just got clowned instead.."

2.     Janky     

Poorly constructed or of poor quality

"This janky shirt she gave me is falling apart.."

3.     janky     
    
Adjective used to describe a person, place or thing which is questionable, fucked up, wrong, strange, broken down, undesirable, and/or just some thing you can't think of another word for. The origin of this word is explained somewhat in the conversation example.

'Friends and I were sitting around drinking coffee one morning, and I was bitching about my empty cup when my friend blamed the lack of coffee on the "janky ass coffee maker."

4.     Janky

Poorly constructed or put together, and does not seem like it should function at all, although it may perform beyond expectations.

"That entire computer system is janky.."

5.     Janky

A conjunctive form of both skanky and junky, thus denoting something both gross and in poor condition.

"My friend, Larry, lives in a real shit-hole. There's dirty socks on the couch and it smells of bong-water. Man, that place is janky!"

6.     janky

An undesireable item that has both bad taste in style and quality.

"That old shoe is janky.."

7.     Janky

Undesirable; less-than optimum.

"Your mother cooks janky collard greens.."