When a woman or man traps the other one into a relationship by means of a child, the child is the jizz ticket.

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

A plain, simple, preferably cheap although not too cheap or it sticks to the skin roll of toilet paper cleverly hidden in one's room for usage of cleaning up one's mess proceeding a successful wanking.