'clunky' definitions:

Definition of 'clunky'

From: WordNet
adjective
Lacking grace in movement or posture; "a gawky lad with long ungainly legs"; "clumsy fingers"; "what an ungainly creature a giraffe is"; "heaved his unwieldy figure out of his chair" [syn: gawky, clumsy, clunky, ungainly, unwieldy]
adjective
Making a clunking sound