Synonyms for Truckle (same or very similar meaning)
WordNet sense 1 (a low bed to be slid under a higher bed):
trundle, trundle bed, truckle bedWordNet sense 2 (try to gain favor by cringing or flattering):
fawn, kowtow, toady, bootlick, kotow, suck upFrom the ODE community, based on WordNetadd/edit