English Noun hole card (plural hole cards) (poker, chiefly in the plural) A playing card, dealt face down, that the holder need not reveal until the showdown. (by extension) Something held in reserve, or concealed, until it is useful. Derived terms hole carding See also ace in the hole community card Anagrams Dalreoch, Rochdale, coheraldWikiwand - on Seamless Wikipedia browsing. On steroids.