smasheroo noun 3adjective 2forms 3 noun3 •(slang) A blockbuster; a movie, play, song, or other form of commercial entertainment that is a smash hit.The third of Neil Simon's Broadway comedy smasheroos to be filmed by Paramount, this is the story of two men, one divorced and one about to be, who become apartment mates ... — 1962 •(slang) A big successA couple of years ago when grain speculators wanted to unload a bumper crop of wheat, ole Dick Nixon helped arrange a smasheroo of a wheat sale to the Russians. — 1975 •(slang) A violent collision.Afterwards he said his only thought was to get the plane close to the water in case anything happened. It did. "PLOOSHHHHHhhhh-hh-hh-h. What a smasheroo in the drink! — 1955 adjective2 •(slang) Extremetly good; fantastic; smashing.Fendi's smasheroo short, short fur belted over shorts, worn with ribby stockings, ribbier over-the-knee socks, Oxford ties . — 1971 •(slang) Inebriated; smashed."What?" says Leon, spinning around, toasting Freed and Claire with his finally emptied flute of champagne. “I'm smasheroo,” he informs them, unconvincingly. — 1999 formssmasheroos · more smasheroo · most smasheroo