tlk
moot
chin
polari
gasconade
gale
speak volumes
yak
gab
hold forth
palaver
overtalk
jibber-jabber
all hat and no cowboy
bragging
all hat and no cattle
all bark and no bite
line-shooting
crowing
crow
vaporing
versant
brag
talkily
chatting
talk the legs off a pot
talk someone's head off
multiloquent
like the sound of one's own voice
talk someone's arm off
talk the leg off the Lamb of God
talk the hind leg off a donkey
yattering
rambling
talky-talky
double Dutch
rhetoric
empty talk
empty words
conversing
multiloquy
talker
hot air
speak
discoursing
talky
spiel
bluster
barber
bleat