What is the meaning of sputtering?

noun

• The noise of something spattering or sputtering explosively.
  • usage: "he heard a spatter of gunfire"
  • synonyms: spatter, spattering, splatter, splattering, sputter, splutter

verb

• Make an explosive sound.
  • usage: "sputtering engines"
  • synonyms: sputter
• Cause to undergo a process in which atoms are removed.
  • usage: "The solar wind protons must sputter away the surface atoms of the dust"
  • synonyms: sputter
• Climb awkwardly, as if by scrambling.
  • synonyms: clamber, scramble, shin, shinny, skin, struggle, sputter
• Utter with a spitting sound, as if in a rage.
  • synonyms: sputter, splutter
• Spit up in an explosive manner.
  • synonyms: splutter, sputter, spit out