1. Marijuana which no one is sure of the name or strain.
2. Marijuana bought by an unreliable street dealer.
1. Jack "Dude is this kush?"
Thuggy D "No dude its bullshit bud"
2. Dealer "Ay man this is grade a alabama kush"
Smoker (an hour later) "Ay fuck that dealer this is some bulshit bud"