Synonyms for Sputter (same or very similar meaning)
WordNet sense 1 (the noise of something spattering or sputtering explosively):
spatter, splatter, splutter, spattering, splattering, sputteringWordNet sense 2 (climb awkwardly, as if by scrambling):
clamber, scramble, shin, shinny, skin, struggle, shinWordNet sense 3 (spit up in an explosive manner):
spit outFrom the ODE community, based on WordNetadd/edit