sb's ears are burning（感到有人议论，尤指说闲话而）耳朵发热sb's ears are burning（感到有人议论，尤指说闲话而）耳朵发热

【例句】
‘I bumped into your ex-wife last night.’ ‘I thought I could feel my ears burning!’
“我
昨天晚上偶然遇到你的前妻。”“怪不得我好像觉得耳朵发热呢！”

Someone must be talking about me. I feel my ears burning.
肯定有人正在背后议论我，我觉得自己耳朵在发烫！