To make a sound with a low, rumbling noise.
To speak softly and incoherently, or with imperfect articulations.
To utter words, especially complaints or angry expressions, indistinctly or with a low voice and lips partly closed; to say under one's breath.
A repressed or obscure utterance; an instance of muttering.
Peas.
To emit a "queep" sound.
The sound a bird may make, similar to peep, chirp, cheep.
The sound a machine may make, similar to beep. See pocketa-queep.
Non-flying duties, typically paperwork, that are undesirable to pilots.
A rowing event, with two scullers and two sweepers per shell.