I think ITB means in the box. So I guess you need to put her in a box first. Maybe with some arm holes for her to mix with. And I guess you have to shout directions to her. Either that or cut some eye holes. Then I think you need to attach a carton of milk to your pc via USB, whilst stamping on the carton, thereby compressing it. Then, when the mix is nearly done, you need to bodyslam everything around you, including the box and the milk and pc. I think this is what they mean by 'squashing the fuck out of a mix'. This is good. Apparently it makes you lots of money.