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in (one's) heyday
In, at, or during the period of one's greatest success, power, vigor, etc. In my heyday as a stock broker, I was making millions of dollars each year, but when the economy crashed, I lost nearly everything.
what the hey
slang Why not? An aside used to emphasize one's nonchalance toward something. Often used as a euphemism for "what the hell." Sure, I'm not doing anything today, let's go to the beach—what the hey? What the hey, I'll go to the movies with you tonight.
See also: hey
phr. a sentence opener used often to get attention and perhaps contradict a previous remark. A: Please don’t track sand all over the restaurant carpet! B: But, hey, it’s my vacation!
See also: hey
interj. hello. (Colloquial. A standard greeting in much of the South, and now heard everywhere.) Hey, Walter. How are you?
interj. hello. Hey, bum! So good to see your smiling face.
A rallying cry for assistance when trouble breaks out. The phrase began in the days of touring carnivals and circuses. A carnival or circus performer or stagehand who found himself in an argument or altercation with patrons or other outsiders yelled, “hey, Rube,” the signal for his colleagues to run and help him out. An item in the Chicago Tribune in 1882 explained that “a canvasman watching a tent is just like a man watching his home. He'll fight in a minute if the outsider cuts the canvas [to sneak in], and if a crowd comes to quarrel—he will yell, ‘Hey, Rube!' That's the circus rallying cry, and look out for war when you hear it.” “Rube” might have been the name of an actual person summoned for assistance, although another possibility is that “rube” referred, as it still does, to country bumpkins; that is, to members of rural carnival and circus audiences who were likely to start trouble.