1. Fucked up. Jank can refer to a state of mind.
2. Fucked up looking. Someone can look Jank. (Also see: Ratchet)
3. Jank can be used to describe someone with a rotten personality.
4. Derivative of 'Jankie'. Broken or messed up. Strange.
Basically stoner speak for anything fucked up, dirty, or gross.
1. 'Bruh I am so jank right now.' *passes doobie*
'Hey its new years eve tomorrow. Lets get jank!'
'Smokin dat jank stuff'
2. Kayla is so Jank now. She used to be cute in high school. What happened?
3. That jank bitch is flirting with my boyfriend. She knows that we are dating. Thats disgusting.
4. 'Where did you park?'
'Over there in that jank spot'