A pidgin word denoting anything that you can't really think of at the moment.
1) Da kine is da kine, and dat's da kine.
2) Auntie wen crack me wit da kine, brah.
A type of handshake, involving contact with only the tips of the fingers. Twiddling motions are used to instigate this contact.
One person will extend his arm and say, "Yeah man, butter!" while twiddling his fingers with vigor. The second person will reciprocate, making only light contact with his/her own twiddling fingers.
Butter.