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 day long 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.