overtalk
overcommunicate
run off at the mouth
babble
overspeak
overdiscuss
talk someone's head off
talk the leg off the Lamb of God
like the sound of one's own voice
talk the legs off a pot
talk someone's arm off
talk the hind leg off a donkey
yap
yak
gab
bend someone's ear
talk someone under the table
overwrite
yabble
talk shite
blather
overquery
blither
smatter
blether
overaccentuate
underdiscuss
overallocate
overesteem
overtill
overstuff
overtheorize
haver
labrish
overcriticize
overdeal
windbag
outtalk
overcare
speak volumes
bleat
chaffer
blow out one's bags
chopse
underspeak
stick in someone's throat
walaʻau
overchew
barber
overuse