Holy terribly named variables Batman!

Sticky sidebar after scroll

$(function() {

    var $sidebar   	= $(".main-sidebar.sticky"), 
        preFooter  	= $('.pre-footer'),
        bloggy		= $('.main-content'),
        blogHeight 	= bloggy.offset(),
        $window    	= $(window),
        offset     	= $sidebar.offset(),
        preOffset   = preFooter.offset(),
        height 		= $sidebar.height(),
        bigOffset   = blogHeight.top + bloggy.height() - height,
        topPadding = 15;

    // on scroll this will calculate the height
    $window.scroll(function() {
        if ($window.scrollTop() > offset.top && $window.scrollTop() < bigOffset) {
        	console.log(height);
        	console.log(preOffset.top - height);
            $sidebar.css('margin-top', $window.scrollTop() - offset.top + topPadding );
        } else if($window.scrollTop() < offset.top) {
            $sidebar.css('margin-top', '0' );
        }
    });
    
});