1. (

• sycophant ,
• toady ,
• crawler ,
• lackey ,
• ass-kisser

) a person who tries to please someone in order to gain a personal advantage ;

1. (

• fawn ,
• toady ,
• truckle ,
• bootlick ,
• kowtow ,
• kotow ,
• suck_up

) try to gain favor by cringing or flattering; "He is always kowtowing to his boss" ;