To make a hissing sound; hiss or sputter, as a liquid or gas forced out of a narrow aperture, or a liquid discharging gas, or a wet combustible, as wood or gunpowder, burning: usually with special reference to the weakness and sudden diminution or cessation of such sound.Hence To stop abruptly after a more or less brilliant start; come to a sudden and lame conclusion; fail ignominiously; specifically, in school and college slang, to fail in a recitation or an examination: often with out: as, the undertaking promised well, but it soon fizzled out; nearly the whole class fizzled in calculus.To break wind.In school and college slang, to examine (a student) with the result of failure on his part: as, the professor fizzled nearly the whole class.n. Same as fizz, 2.n. A fizzling or fizzing condition; hence, a state of restless agitation; a stew; worry: as, he is in a fizzle about his luggage.n. A breaking wind.n. A failure or an abortive effort; in particular, in school and college slang, a failure in a recitation or an examination.