You can always try blocking their site as a referer in .htaccess. That will throw off a 'Forbidden' page when a visitor (or bot) clicks through from their site to yours.
There is some controversy about how effective this is, but at least it's a way of denying their link.
As Andy suggests you can disavow these links however you must do a lot more work than just submitting the disavow links request. If the request alone is submitted, Google will likely ignore it. You must provide ample evidence that you are doing everything in your power to get the links removed. This includes evidence that you have contacted the webmaster of manboob and tried to get the links taken down and any evidence that you have in relation to why they are targeting you.
Disallow option in Google webmaster will help you block the links that are of low quality and for this first of all login in to the webmaster tools and list out all the websites that are of low quality and submit the same in the disallow option.