con·fab inf. • n. / ˈkänˌfab; kənˈfab/ an informal private conversation or discussion. ∎  a meeting or conference of members of a particular group.• v. / kənˈfab; ˈkänˌfab/ (-fabbed, -fab·bing) [intr.] engage in informal private conversation: Peter was confabbing with a curly-haired guy.

confab XVIII. colloq. shortening of confabulation talk, chat. XV. — late L. confabulātiō, -ōn-, f. confabulārī converse (see CON-, FABLE), whence confabulate XVII, also abbrev. confab.