Meaning of SMACK
What Does SMACK Mean? (Using SMACK Online)SMACK means "Heroin".
Summary of Key Points
Definition for SMACKSMACK means "Heroin". This is the most common definition for SMACK on Snapchat, WhatsApp, Facebook, and Twitter. Here is some more information about SMACK:
2: Quite easy to guess
A Text with SMACK
Using SMACK on a Cell Phone (SMS Texts, Whatsapp, and Yubl)