the golden ass, that booty you chase... for some people their whole life but in order for it to be the ass of the covenant ya have to put at least half a decade into it... think ducky from 16 candles but he doesnt give up... or get laid
P: "yeah so how long you been after this girl bro"
D: "only like five or six years"
P: "... well chase that ass of the covenant there indy... you dumbass"
Ass kisser = a suck up, someone who will kiss someone's butt to gain points. Sometimes these folks are known as bum-kissers. Often these folks tend to be the goody goody types whom one can not trust for a second - these folks will use what you tell them, or do, against you for their own personal gain. Most of these people are social nerds with few social skills - the only way they can get attention is to play suck up to someone important - usually a boss, manager or teacher/professor - an authority fiqure.
The best way to deal with these kind of people - bum-kissers is to avoid them - never trust them, never confide with them.
I had a co-worker who was the consumate ass-kisser - he would suck up to the boss all daylong to gain favors and access. All of us in the office were aware of this situation and adopted a strategy of avoidance - keeping our mouths shut and not getting involved with the little bum kisser in any way. The little ass kisser functioned in his own little world.