full of hot air
chatter
all hat and no cowboy
all hat and no cattle
talky-talky
talk the leg off the Lamb of God
talk the hind leg off a donkey
talk the legs off a pot
talk someone's arm off
all bark and no bite
like the sound of one's own voice
talk someone's head off
chat
speak volumes
jibber-jabber
chitter-chatter
talkative
blabbermouthed
bigmouthed
blabby
bandy about
spiel
gift of the gab
Chatty Cathy
lip wisdom
flummery
descant
talky
talk someone's ear off
talksome
vaniloquent
palaver
lip service
tlk
crowing
yack on
line-shooting
play the something card
brag
empty words
logomania
bragging
logorrhea
gas
gasconade
crow
crutch word
yackety-yak
vaporing
a closed mouth catches no flies
drop
gaffle
talkily
yak
gab
conversably
talkatively
verbal constipation
blather
blatherskite
speech is silver, silence is golden
polylogy
talk a blue streak
multiloquy
chaffer
sociable
dissertate
gibberish
conversationally
speel
loquacity
hold forth
discourse
gibber
blow out one's bags
soft-soap
chinny
cant
natter
chew the fat
shoot the breeze
confab
chit-chat
confabulate
jaw
multiloquent
gabble
claver
gossip
quiet
talkful
chitchat