Definition of "doozy"
doozy
/ˈduːzi/
noun
plural doozies
(US, informal) Something that is extraordinary: often troublesome, difficult or problematic, but sometimes extraordinary in a positive sense.
adjective
not generally comparable, comparative doozier, superlative dooziest
(slang, dated) Of high quality; remarkable; excellent.
(slang, US, archaic) Sporty, ostentatious, flashy.