shoo-in noun 2shoo in verb 1forms 2 noun2 •The winner of a fixed race, a fixed race.[it was] wondered whether Chris Chenery's Virginia flyer would be a shoo-in for the Belmont Stakes […] — 1950 •(informal) A candidate or contestant generally agreed upon as the presumptive winner; a favorite, somebody who is well-liked or widely agreed upon.She's very popular and good with numbers, so I expect she'll be a shoo-in for treasurer. shoo in verb1 •To cause (a competitor) to win a fixed race. formsshoo ins · shoo-ins