Kissing up

Explanation of the idiom Kissing up . Also said as kissing ass, sucking up, and brown nosing. A huge amount of spoken and written English is made up of idioms, slang, and expressions. Not knowing these will make English impossible to understand. Most native speakers of English do not even realize they are using idioms when they speak. They do not know how to simplify their English in order to be understood. So it is the situation that a learner that has been studying for years, with a high score on