transitive verb
: to discuss in a favorable fashion : commend , promote , advocate
enthusiast had been talking up the game — F.S.Blanchard
organizing crews to ring doorbells and talk up loans — N.M.Clark
sponsoring and … talking up a so-called right-to-work bill — P.F.Healy
intransitive verb
: to speak up plainly or directly
if you do not talk down to a child, it will assuredly talk up to you — Wilson Follett
talks up in the evening … talking bolder than he sometimes feels — Meridel Le Sueur