Typically referred to as 360 friendly, this term is associated with Methamphetamine (also called
meth, crystal, chalk, and
ice, among other terms) use. Similar to the term 420 friendly, being 360 friendly means you are
ok with and/or participate in the use of crystal
meth. Methamphetimine users are typically referred to as tweakers and the act of being high on
ice is referred to as tweaking out or being spun. Tweakers are known for getting "stuck"'going in circles whilst not accomplishing much and zooming so fast/
hard they seem to run circles around everyone. Thus referencing the word 360 (a complete circle) with methamphetimine use.