chasing tail
追求不切實際或無法獲得的目標(biāo)
口語·貶義，形容輕浮的戀愛行為
英文釋義
to pursue or pursue multiple romantic or sexual partners, often in a casual or noncommittal manner
例句
He's always chasing tail at parties instead of making real connections.
典故來源
源于狗追逐尾巴的意象，引申為隨意追逐異性或短暫浪漫關(guān)系。