This is the sentence that describes the action of "sucking dick". this is used so others will not know what you are talking about and will keep your private information between you and your friends. this originated from one friend telling the other about this situation and telling them to keep it a secret but when it slipped up this was used to cover the secret.

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