Definitions for gabfestˈgæbˌfɛst
Random House Webster's College Dictionary
a gathering at which there is a great deal of conversation.
a long conversation.
Origin of gabfest:
chitchat, chit-chat, chit chat, small talk, gab, gabfest, gossip, tittle-tattle, chin wag, chin-wag, chin wagging, chin-wagging, causerie(noun)
light informal conversation for social occasions
an occasion (such as a meeting) where people talk at length.
Origin: gab + fest