can someone break these down for me and tell me what the following are and how they are different from each other

Blunt
J
Spliff
Joint

i never roll, ive always used glass pieces and my friends do the same, i guess i know what a joint is but whats the difference between the other 3?
xmk Reviewed by xmk on . please explain these terms to me can someone break these down for me and tell me what the following are and how they are different from each other Blunt J Spliff Joint i never roll, ive always used glass pieces and my friends do the same, i guess i know what a joint is but whats the difference between the other 3? Rating: 5