The phrase "to flush out" means to force someone or something to come out into the open, by using a method that makes it impossible for them to remain hidden. Full definition
The idea is to give you energy, control your appetite, improve mental strength and help your body flush out toxins all in one easy to take supplement. (matefit.me)
I appreciate it I guess it was my understanding that after a few weeks the water would kind of flush out of your system and I would see the scale go back down. (coachcalorie.com)
All of them have detox properties, providing fresh nutrients to sustain the liver activity and fiber to help our system flush out the toxins from our cells. (detoxdiy.com)