piddle

Short definition from Wiktionary

Noun

1. 1
   Piss: urine.
2. 2
   A piss: an act of urination.
3. 3
   Nonsense or a trivial matter.

Verb

1. 1
   Often followed by about or around: to act or work ineffectually and wastefully.
2. 2
   Synonym of peck: to attack or eat with a beak.
3. 3
   Synonym of nibble: to pick at or toy with one's food, to eat slowly or insubstantially.
4. 4
   To urinate.

Proper noun

1. 1
   A small river in Dorset, England.
2. 2
   A brook in Worcestershire, England.