Noun
1. sycophant
2. brown-noser
3. lickspittle
5. flunky
6. lackey
7. trained seal
8. doormat
9. stooge
12. suck-up
13. yes-man
14. kiss-ass
15. ass-kisser
Verb
16. grovel to
17. ingratiate oneself with
18. be obsequious to
19. kowtow to
20. pander to
21. crawl to
22. truckle to
23. bow and scrape to
24. curry favor with
25. make up to
27. slaver over
30. suck up to
31. lick the boots of
32. butter up