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.
(..) the nipple of my left breast. WOMAN: Two in my right nostril. One in my left eyebrow. One in my belly. One in my lip. One in my clit. And I wear a stud in my tongue. VINCENT: Excuse me. I was just curious, but, um... why would you wear a stud in your tongue? It's a sex thing. (..)1994 Pulp Fiction
(..) neither. Now, look, maybe your method of massage differs from mine... but you know touching his wife's feet... and sticking your tongue in her holiest of holies... ain't the same fucking ballpark. It ain't the same league. It ain't even the same fucking sport. (..)1994 Pulp Fiction