puller vs jerker

puller and jerker both are nouns.

Word	Noun	Adjective	Verb	Adverb
puller	Yes	No	No	No
jerker	Yes	No	No	No

As nouns, jerker is a hyponym of puller; that is, jerker is a word with a more specific, narrower meaning than puller:

puller: someone who applies force so as to cause motion toward herself or himself
jerker: someone who gives a strong sudden pull

Other hyponyms of puller include wrester, yanker.

puller (noun)	jerker (noun)
someone who pulls or tugs or drags in an effort to move something	someone who gives a strong sudden pull
someone who applies force so as to cause motion toward herself or himself