The line goes Mera Jutta Fake Leather, Dil Chhi-chha-ledar.
Mera Jutta Fake Leather simply means that my shoe is made of Fake Leather. And the way it goes, one might think that Chhichha means real so that the line would go 'My shoe is fake leather, but my heart is made of real leather.'
However, chhichha is not a word in Hindi, but chhichhaledar (छीछालेदर) as a whole is a word which means a bad situation, trouble, mess. And hence, the line would mean that my heart is in a mess.