puddle vs spend a penny

puddle is a noun but spend a penny is not a noun.

Word	Noun	Adjective	Verb	Adverb
puddle	Yes	No	Yes	No
spend a penny	No	No	Yes	No

As verbs, puddle and spend a penny are synonyms defined as:

puddle (noun)	spend a penny (noun)
something resembling a pool of liquid
a small body of standing water (rainwater) or other liquid
a mixture of wet clay and sand that can be used to line a pond and that is impervious to water when dry

puddle (verb)	spend a penny (verb)
eliminate urine	eliminate urine
mix up or confuse
mess around, as in a liquid or paste
make into a puddle
work a wet mixture, such as concrete or mud
make a puddle by splashing water
dip into mud before planting
subject to puddling or form by puddling
wade or dabble in a puddle