Piddler: One who manages to stay busy without ever really appearing to accomplish much of anything.

Piddle \Pid"dle\, v. i. [imp. & p. p. {Piddled}; p. pr. & vb. n. {Piddling}.] [Cf. dial. Sw. pittla to keep picking at, Sw. peta to pick.]

1. To deal in trifles; to concern one's self with trivial matters rather than with those that are important. --Ascham.

2. To be squeamishly nice about one's food. --Swift.

3. To urinate; -- child's word.