köken: From Arabic بَنِي (banī, “sons of”) + oui oui, thus roughly “the tribe of yes-yes”. Originally referred disparagingly to the Muslim advisers employed by the French in colonial northern Africa, many of whom were servile and therefore ineffective.
ass-licker (US), arse-licker (UK), asskisser, (US), arse-kisser (UK), brown noser, toady, sycophant, yes man
köken: Verb-object compound, composed of lame (“to lick”) + culos (“asses/arses”). Compare French lèche-cul. Said because the ass is considered vulgar and being willing to kiss another's is considered a sign of submission and patronage.
köken: From צובאָמקען (tsubomken, “to hum/clap along in accompaniment/agreement”) + ־ער (-er), the former from צו־ (tsu-) + באָמקען (bomken, “to hum/knock/tap bom-bom-bom”).