These lines form a spiderweb-like pattern that is highly distinctive and easily recognizable. The crackback pattern is characterized by a series of lines that radiate out from a central point. In particular, the crackback pattern occurs when the drug is heated in a pipe, and then the user stops heating it and lets it cool down. This characteristic is the pattern that is formed when the drug is heated and then cooled down. Crackback meth is a term used to describe a specific visual characteristic of methamphetamine that is commonly used as a recreational drug.
