[lum.pen] adj [G Lumpenproletariat degraded section of the proletariat, fr. Lump contemptible person (fr. Lumpen rags) + Proletariat] (1936): of or relating to dispossessed and uprooted individuals cut off from the economic and social class with which they might normally be identified "~ proletariat" "~ intellectuals"
[2]lumpen n, pl lumpen also lumpens (1941): a member of the crude and uneducated lowest class of society