Подлецам is the dative plural of подлец, meaning 'scoundrel' or 'villain'. It's a strong and somewhat old-fashioned word that isn't heard in everyday conversation as often as more common insults.
In the song, it's used to describe the kind of men who attract good girls: "Очень тянет к подлецам девочек хороших" (Good girls are very drawn to scoundrels). This word highlights the song's central theme of warning against a deceitful lover, making it particularly impactful and memorable.
This song is a straight-up warning to a friend who's falling for the wrong guy! It's a classic story: a good girl is completely captivated by a man who looks good but is bad news. The singer points out how "Очень тянет к подлецам девочек хороших" (Good girls are very drawn to scoundrels) and that she's so mesmerized by his "грозного вида" (formidable appearance) that her heart just melts.
The chorus is basically the singer shouting the advice we all want to give our friends in this situation: "Не люби, не люби, не люби — он плохой" (Don't love, don't love, don't love him — he's bad). Why? Because he "о любви говорит каждой второй" (talks about love to every other girl). The song is a desperate plea for her to listen to what people are saying and, most importantly, to "Глазки свои открой" (Open your little eyes) before she gets her heart broken by a guy whose love is just a "капкан" (trap).