Meaning
Colloquial: an ungrateful betrayer who bites the hand that feeds (lit. 'false to one's salt').
Literally: unfaithful to salt
See it in the verse
Namak-haram in Iqbal’s couplets
Khud badalte nahin Quran ko badal dete hain
Hue kis darja faqeehan-e-haram be-taufeeq
Hue kis darja faqeehan-e-haram be-taufeeq
They will not change themselves, so they reinterpret the Quran instead — how utterly bereft of grace the jurists of the sanctuary have become.
Justice · Awakening · Courage
Mard-e-Khuda ka amal ishq se sahib-e-firogh
Ishq hai asl-e-hayat maut hai is par haraam
Ishq hai asl-e-hayat maut hai is par haraam
The deeds of the man of God shine with love; love is the essence of life, and death is forbidden to touch it.
Love · Aspiration · Action