underspeak
speech is silver, silence is golden
underdiscuss
prate
underarticulate
too soon
suffice it to say
go off at score
overarticulate
blabby
bigmouthed
talkative
blabbermouthed
reticence
loosen someone's tongue
overtalk
rumble on
overtell
blather
blither
blether
babble
smatter
undervoice
murmur
overspeak
shoot off at the mouth
wrap up
mince words
get wind in one's jaws
maundering
mispromise
shame
venture
create
overstate
scream loudest
precipitate
harp on
overenunciate
save one's breath to cool one's porridge
row
idle words
nothingness
niggle
wind
malarkey
jazz
malarky
halloa
dwale
mismumble
haver
spraff
chelp
put up or shut up
tepidly
whistle down the wind
lukewarmly
mumblage
esprit de l'escalier
unargumentative
trash
overword
punk
yabble
disquieten
overdiscussed
bullshit
run off at the mouth
vilify
waste breath
blow out one's bags
overdaintily
erm
overcriticize
back that train up
malarticulate
overcoddle
underargue
hem and haw
inveigh
wordy
hesitate
over-egg the pudding
overaccentuate
misdictate
titubancy
talk shite
inaniloquent
talk someone under the table
sputter
bejumble
chunner
slag
uptalk
slant
no really
slam