I thought she was acting foolishly, but I 'bit my tongue' [='held my tongue'] and didn't say anything.
The news of their engagement 'set tongues wagging'. = 'Tongues were wagging' over their engagement.
He speaks English fluently but his 'mother tongue' [='native language, first language'] is Chinese.
(..) Would you stop it, please. Don't you get it, Joy. We're stuck down here. We're forgotten. Do you remember, how she used to stick her tongue out when she was coloring. I could listen to her stories all day I just wanted Riley to be happy. It was the day the Prairie dogs (..)2015 Inside Out