The word Chod relates to rapists? That's news to me.
"মাদারচোদ" translates to "motherfucker", a common insult across the globe that has nothing to do with rape...
বড় means husband, বড়চড would mean man-fucker in this context, add া to make it an action, বড়চডা = husband-fucker could mean gay sex or a homewrecker.