The brass ring

Very desirable prize
The meaning of THE BRASS RING is a very desirable prize, goal, or opportunity —often used in phrases like grab the brass ring and go for the brass ring.

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To kiss someone’s ring
Show respect
To kiss someone’s ring means to show respect or subservience to someone. The idiom is used in a figurative sense, but it is derived from a literal use of the phrase. For thousands of years, kissing the ring of a superior has been a sign of respect and obedience. In more relaxed or informal contexts, the idiom is used to poke fun at those who are brown-nosers or teacher’s pets.

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kiss someone's ass
idiom
informal + impolite
: to be too nice to someone in order to be liked by or to get something from him or her
He says he doesn't want a promotion if he has to kiss his boss's ass to get it.

Similar:
pay court to
play up to
dance attendance on
flatter
praise
sing the praises of
eulogize
be obsequious to
be sycophantic to
be servile to
curry favor with
crawl to
creep to
ingratiate oneself with
fall over oneself for
kowtow to
toady to
truckle to
bow and scrape before
grovel before
cringe before
abase oneself before
praise to the skies
praise to excess