suck up vs shine up

suck up and shine up both are verbs.

Word	Noun	Adjective	Verb	Adverb
suck up	No	No	Yes	No
shine up	No	No	Yes	No

As verbs, suck up and shine up are synonyms defined as:

suck up and shine up: ingratiate oneself to; often with insincere behavior

Other synonyms of suck up include cotton up, cozy up, play up, sidle up.

suck up (verb)	shine up (verb)
try to gain favor by cringing or flattering	ingratiate oneself to; often with insincere behavior
take in, also metaphorically
ingratiate oneself to; often with insincere behavior