wagwan piffting means yo wassup girl and you say that before you ask for their bbm pin, which is their number on blackberry messenger.

‘hello beautiful woman can i get your blackberry messenger pin’ this is often used by ‘roadmen’

this is a phrase that a youtubers George Memeulous who has the biggest dick and massive muscles he is also 6’5 and has totally not made me write that part.

Being an idiot

Liking a youtuber that takes the piss

from research from bing
it basically means this:

hey whats up hot human give me your phone number

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

Slang. Means hello beautiful female what is your blackberry mobile pin number. Originated from London where "roadmen" said it to females to get together with them.

how epic gym lads like george memeulous pull

introduced by a youtuber, memeulous , it means, hey hot girl can I get your phone number . This phrase will get you all the ladies or gents I promise.