sucker vs all-day sucker

sucker and all-day sucker both are nouns.

Word	Noun	Adjective	Verb	Adverb
sucker	Yes	No	No	No
all-day sucker	Yes	No	No	No

As nouns, sucker and all-day sucker are synonyms defined as:

Other synonyms of sucker include lollipop.

sucker (noun)	all-day sucker (noun)
mostly North American freshwater fishes with a thick-lipped mouth for feeding by suction; related to carps	hard candy on a stick
an organ specialized for sucking nourishment or for adhering to objects by suction
hard candy on a stick
flesh of any of numerous North American food fishes with toothless jaws
a drinker who sucks (as at a nipple or through a straw)
a person who is gullible and easy to take advantage of
a shoot arising from a plant's roots