[noun] something twisted and tight and swollen; "their muscles stood out in knots"; "the old man's fists were two great gnarls"; "his stomach was in knots" Synonyms:knot
[verb] twist into a state of deformity; "The wind has gnarled this old tree"
[verb] make complaining remarks or noises under one's breath; "she grumbles when she feels overworked" Synonyms:murmur, mutter, grumble, croak