(idiomatic) A decision in which neither choice is clearly favorable or unfavorable, or for which the outcome does not matter. / Either of two outcomes that are equally likely.

plural of toss-up

(intransitive) To make a decision based on chance, for example by flipping a coin or rolling a dice. / (intransitive) To throw something upwards. / (transitive) To produce, generate.

(television, radio) During a classroom quiz or game show, a question posed to two or more opponents where both are able to answer by signaling, and depending on the rules, the one that responds with a correct answer either takes control of the game or proceeds to advance to a subsequent round.

plural of toss-up question