1) Caked 2) Caky 3) Chunky 4) Nodulose 5) Uneven 6) Unshapely 1) Chunky 2) Hardly smooth 3) Having lumps 4) Like a cheap, old mattress 5) Like an old mattress 6) Like an old sofa 7) Like bad gravy 8) Like bad oatmeal 9) Like gravy, at times 10) Like inferior gravy 11) Like old mattresses 12) Like poor gravy 13) Like poorly made gravy 14) Like poorly prepared oatmeal 
Lumpy is a popular nickname for characters in media. ...
• (superl.) Full of lumps, or small compact masses.
Lump'y adjective [ Compar. Lumpier ; superl. Lumpiest .] Full of lumps, or small compact masses. 
A dealer whose dealing is not smooth. Slang.
[adj] - having lumps
Used to describe the texture of a substance - not smooth, has lumps.
adjective having lumps; not smooth and even in texture; `lumpy gravy`
full of lumps: lumpy gravy. · covered with lumps, as a surface. · heavy or clumsy, as in movement or style; crude: a lumpy gait; a lumpy narrative. · (of water) rough or choppy.