chelem noun3 •The act or contract for winning all, or almost all, of the possible tricks.If the grand chelem is made, the winner receives seventeen points from each adversary and the game continues; if twelve tricks are made, the winner receives the value of sixteen points. — 1882 •Winning all (or all but one) of the available, major or specified events in a given year or sports season.For the first time in his career the Red Bull star achieved Formula One's grand chelem of pole, win, fastest lap and leading for every single lap, to further underline his dominant campaign. — 2011 •Synonym of slam. formschelems