creep
vb
1 crawl, crawl on all fours, glide, insinuate, slither, squirm, worm, wriggle, writhe
2 approach unnoticed, skulk, slink, sneak, steal, tiptoe
3 crawl, dawdle, drag, edge, inch, proceed at a snail's pace
4 bootlick (informal) brown-nose (taboo slang) cower, cringe, fawn, grovel, kiss (someone's) ass (U.S. & Canad. taboo slang) kowtow, pander to, scrape, suck up to (informal) toady, truckle
n
5 (slang) ass-kisser (U.S. & Canad. taboo slang) bootlicker (informal) brown-noser (taboo slang) sneak, sycophant, toady
6 give one the creeps or make one's flesh creep disgust, frighten, horrify, make one flinch, make one quail, make one shrink, make one squirm, make one's hair stand on end, make one wince (informal) repel, repulse, scare, terrify, terrorize