1. To squeeze something out (of something else). A noun or pronoun can be used between "crush" and "out." This hat is too tight—it's crushing my brains out! This kind of juicer chews up the fruit and vegetables before crushing out their juice. I had to crush the toothpaste out of the tube because it was almost empty.

2. To extinguish something by crushing it, especially a cigarette. A noun or pronoun can be used between "crush" and "out." I took one last drag and crushed the cigarette out in the ashtray. The detective crushed out his cigarette angrily and stormed out of the room. Hey, you better crush out that cigarette before one of the teachers sees you!