Commonly used after the phrase booyakasha for emphatic and dramatic effect. Not unlike "word" or "out," "wag wan" is only slightly different in that it grants greater authority to the user.
wagwan is a jamaican patois or jamaican english way of saying "whats up"
piff means "high quality", and ting is the autistic version of saying "thing"
a bbm pin is the numbers you'd use to contact someone on the blackberry messenger