Definitions for "Grumble "
To murmur or mutter with discontent; to make ill-natured complaints in a low voice and a surly manner.
To growl; to snarl in deep tones; as, a lion grumbling over his prey.
To rumble; to make a low, harsh, and heavy sound; to mutter; as, the distant thunder grumbles.
Grumble is a small chat server UNLIKE irc. Distribution comes with 2 clients - one for dumb terminals and one for people who can run ncurses programs. It inclues a rudimentary login scheme, and users must be authenticated. It also comes with tools to add, delete, and query users.
show one's unhappiness or critical attitude; "He scolded about anything that he thought was wrong"; "We grumbled about the increased work load"