ass-kisser vs crawler

ass-kisser and crawler both are nouns.

Word	Noun	Adjective	Verb	Adverb
ass-kisser	Yes	No	No	No
crawler	Yes	No	No	No

As nouns, ass-kisser and crawler are synonyms defined as:

ass-kisser and crawler: a person who tries to please someone in order to gain a personal advantage

Other synonyms of ass-kisser include lackey, sycophant, toady.

ass-kisser (noun)	crawler (noun)
a person who tries to please someone in order to gain a personal advantage	terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers
	a person who tries to please someone in order to gain a personal advantage
	a person who crawls or creeps along the ground