one who is smooth with the ladies, in a studlike fashion

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

an invisible fuck who screwed up my entire life

As in Roddy Woomble, the lead singer of Idlewild, adored by millions, both male and female.

according to popular folklore, a roddy is a big chode, with a small chode

a person whos letter box often get blown up during the late hours of the night

typically covered in tattoos, goes for younger girls.
loves sex his mothers shack and his dogs