The younger son is in a bed elsewhere, like a Dostoevsky dosser, while the elder generates cross-talk patter routines.
From the independent.co.uk
Dosser drilled in a ball from the left, and the giant Nana's flicked header evaded a static Wood rearguard and Imber was beaten again.
From the borehamwoodtimes.co.uk
I'll be gobsmacked if a middle aged hippy from Wales and a homeless dosser are really going to bother a company that works in the heart of the US government.
From the theargus.co.uk
More examples
Someone who sleeps in any convenient place
Someone who dosses, someone known for avoiding work; A basket; A homeless and jobless person
(Dossers) Heavy light grey flannel trousers worn by a select few - a Sixth Form Privilege. Originally three notes from three different beaks (teachers) had to be obtained stating that the boy was indeed 'a dosser'.