vapid (adj.)Related entries & more
1650s, "flat, insipid" (of drinks), from Latin vapidus "flat, insipid," literally "that has exhaled its vapor," related to vappa "stale wine," and probably to vapor "vapor." Applied from 1758 to talk and writing deemed dull and lifeless. Related: Vapidly; vapidness.
vappa (n.)Related entries & more
"wine that has lost its flavor," c. 1600, from Latin vappa "wine without flavor," figuratively "a good-for-nothing" (see vapid).
wop (n.)Related entries & more
derogatory for "Italian," 1912, American English slang, apparently from southern Italian dialect guappo "dandy, dude, stud," a greeting among male Neapolitans, said to be from Spanish guapo "bold, dandy," which is from Latin vappa "sour wine," also "worthless fellow;" related to vapidus (see vapid). It is probably not an acronym, and the usual story that it is one seems to date only to c. 1985.
sillabub (n.)Related entries & more
also sillibub, syllabub, etc., 1530s, of unknown origin. Drink or dish of milk and wine or cider, often sweetened. Figurative sense of "floridly vapid prose" is from 1706.