WordWeb Online

1. Attempting to win favour from influential people by flattery
   - fawning, obsequious, sycophantic, toadyish
    
2. Attempting to win favour by flattery
   - fawning, sycophantic, toadyish

1. Try to gain favour by cringing or flattering
   "He is always bootlicking to his boss"
   - fawn, toady, truckle, kowtow, kotow, suck up

See also: bootlicker, insincere, servile

Type of: blandish, flatter