Zarting is the act of telling your opinion about something you totally have no idea about, so instead of saying I don't know you start improvising and zarting about the topic

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

When you fart loudly and it smells really bad.