Russian ⇄ English

долбоёб n stresses
Gruzovik, rude	stupid person
inf.	dumb-ass (Taras); fuckup (о нерадивом человеке vogeler); fuck-up (о нерадивом человеке vogeler)
invect.	fuckhead (Alex Lilo); fucktard (aestero); fucking moron (Val_Ships); fuckwit ("A person who is not only lacking in clue but is apparently unable or unwilling to acquire clue even when handed it on a plate in generous portions." – urbandictionary.com Vadim Rouminsky); fuck-nugget (Taras); fuck nugget (Taras); fucknugget (Taras)
rude	limo (Vadim Rouminsky); wally (MichaelBurov); wallie (MichaelBurov)
slang	dumbass (Artem Chuprov)
taboo	jackass (Vadim Rouminsky)
vulg.	dickhead (an extremely stupid man, as in: Do you think it's funny, dickhead? Alex Lilo); doucher (Alexey Lebedev); douchetard (Alexey Lebedev); asshat (Юрий Гомон)
долбоеб n
gen.	stupid fuck (Dude67)
rude	butthead (Andrey Truhachev); blockhead; stupid person

долбоеб: 6 phrases in 4 subjects

General	1
Invective	1
Jargon	1
Slang	3