What is the X in X-mas?
mid-14c., "a destroyer," agent noun from lose (v.). Sense of "one who suffers loss" is from 1540s; meaning "horse that loses a race" is from 1902; "convicted criminal" is from 1912; "hapless person" is 1955 student slang.
(also born loser) A person or thing that fails, esp habitually; bust, dud, lemon, nonstarter (1950s+ Students)
: I don't want them to think I'm losered out