- the tossing of a coin to decide something by its fall.
- an even choice or chance: It's a tossup whether they'll come or not.
Origin of tossup
First recorded in 1740–50; noun use of verb phrase toss up
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tossup
The election is expected to be a tossup in this heavily Cuban American South Florida district.The 8 Most Competitive Congressional Races of 2014
October 28, 2014
It may not be news when John Boehner holds a fundraiser for the Republican candidate in a tossup district.John Boehner Risks Social Conservative Wrath to Support Carl DeMaio
October 7, 2014
The nonpartisan Cook Political Report has currently classified the Colorado Senate race as a tossup.Democratic Senator Calls on CIA Director to Resign
July 31, 2014
The race is currently considered a tossup by outside observers and polling has Ernst and Braley in a dead heat.Exclusive: GOP Senate Candidate Caught Saying States Can Nullify Laws
July 28, 2014
Obama, meanwhile, was also going door to door—doing a satellite tour of local stations in the tossup states.Robert Gibbs Plans a Good Cry
November 6, 2012