A Sweet Puff is a small glass water pipe (bong) used to smoke Methamphetamine (ice) Amphetamine (Speed) or Crack cocaine. Commonly used as a verb by those who have not had the required education to realise it is a proper noun i.e people who smoke from sweet puff's.
Jason: Hey bro what are you doin'?
Stevo: Havin' a sweet puff bro.
Jason: Havin' a schweet puff!
Sweet Puff is a slang term for a Middleton's Black and Mild wine-flavored cigar which has had all the tobacco emptied and mixed with Marijuana then put back into the empty cigar to be smoked. The reason it is called Sweet Puff is due to taste of the cigar once the Marijuana and wine flavored tobacco has been mixed in a fine blend. Most users prefer these to regular Marijuana blunts as they taste almost like candy. There have also been cases of people blending/grinding in hard candy into the sweet puff to increase the sweet flavor, but with no record of side effects this is not recommended.
Hey man, I just bought a wine Black & Mild, wanna make some Sweet Puff?