(Australian coll.) Someone who complains a lot often about unnecessary things. See whinger
Don't be such a grizzleguts!
by Fub2 March 08, 2008
1 more definition
Someone who over eats and scoffs. Also usually greedy.
"Damn it Andrew, You ate all that cake! You're such a grizzle guts!"
by kittyouss June 12, 2007