backslapper
/ˈbækslæpər/Definitions
1. noun
A person who habitually or habitiously flatters or praises someone in order to gain their favor or support.
“The politician was accused of being a backslapper, only paying attention to the wealthy donors at the event.”
2. noun
A person who habitually or habitiously apologizes or makes concessions in order to avoid conflict or criticism.
“The company was criticized for its backslapper CEO, who constantly apologized for things that were not his fault.”