The difference between Nibble and Piddle

When used as nouns, nibble means a small, quick bite taken with the front teeth, whereas piddle means piss: urine.

When used as verbs, nibble means to eat with small, quick bites, whereas piddle means to work or act ineffectually and wastefully.

check bellow for the other definitions of Nibble and Piddle

Nibble as a noun:

A small, quick bite taken with the front teeth.
Nibble as a noun (in the plural, nibbles):

Small snacks such as crisps/potato chips or nuts, often eaten to accompany drinks.

Nibble as a verb (ambitransitive):

To eat with small, quick bites.

Examples:

"The rabbit nibbled the lettuce."

"The rabbit nibbled at the lettuce."
Nibble as a verb (transitive):

To bite lightly.

Examples:

"He nibbled at my neck and made me shiver."
Nibble as a verb (figurative):

To consume gradually.
Nibble as a verb:

To find fault; to cavil.

Nibble as a noun (computing):

A unit of memory equal to half a byte, or four bits.

Piddle as a noun (British, Australia, euphemistic, _, slang):

Piss: urine.
Piddle as a noun (British, Australia, euphemistic, _, slang):

A piss: an act of urination.
Piddle as a noun (British, figurative):

Nonsense or a trivial matter.

Piddle as a verb (intransitive, often with 'around' or 'about'):

To work or act ineffectually and wastefully.
Piddle as a verb (intransitive, obsolete):

to attack or eat with a beak.
Piddle as a verb (intransitive, now, _, South, _, US, often with 'with'):

to pick at or toy with one's food, to eat slowly or insubstantially.
Piddle as a verb (UK, AU, euphemistic, _, slang, intransitive, _, or, _, reflexive):

To urinate.