1to flatter or curry favor with someone; to fawn on or ingratiate oneself with
彼は出世のために上司に媚びてばかりいる。
He is always flattering his boss to get ahead.
媚びるような態度は職場では逆効果になることが多い。
A servile attitude often backfires in the workplace.
あまり媚びないで、自分の意見を言ったほうがいい。
Don't flatter too much; it's better to state your own opinion.
2to flirt with someone; to make eyes at someone (often implying coquettish behavior)
彼女は飲み会で知らない男性に媚びるような態度をとった。
At the party she acted coquettishly toward a man she didn't know.
友達は、あの人に媚びているように見えたが実は計算だった。
My friend seemed to be flirting with that person, but it was actually calculated.