lum ‧ pen /ˈlʌmpən, ˈlʊm-/ BrE AmE adjective
[ Date: 1900-2000 ; Origin: lumpenproletariat 'lowest part of the population' (20-21 centuries) , from German , from lump 'dirty untidy person' + proletariat 'proletariat' ]
1 . relating to the poorest and least educated people from the ↑ working class
2 . large, heavy, and lumpy:
Her body felt lumpen and awkward.