Mollyin is similar to rolling on x, but it is when you are rolling on pure molly(mdma) and two beans cut with meth. This is referred to mollyin

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy