on the bubble

== English == === Etymology === First appears in the US, c. the late 20th century, from the state of Indiana motor racing. === Pronunciation === === Prepositional phrase === on the bubble (motor racing) Holding the last qualifying position with qualification still in progress, and thus liable to lose that position. (sports) Having qualification for an event depend on the upcoming performances of other competitors; hence, at risk of being eliminated, and reversely, being close to qualification; on the verge. (idiomatic) Uncertain of success. Used other than figuratively or idiomatically: see on,‎ bubble. ==== Usage notes ==== Not to be confused with in a bubble, which has a different meaning. ==== Related terms ==== === See also ===