blub

Number Five dredge trembled, with a wet sucking sound, and settled back into the mud, blub—blub—blub.

Shiny wet, Sonnie-Boy, and blowing their cheeks out like so many blub-blubs.

And from the fern-covered hollows above other voices replied joyously to her reassuring call, "Blub-blub-blub!"

All the time the whistle and blub-blub of bullets filled the air, and all the time the death-list grew.