1. to become empty, empty; to become vacant. 2. (for a liquid) to run out (of a container); (for people, liquid) to flow out, stream out, pour out. 3. /a/ (for a river) to empty into (a sea). 4. (for a rope) to become slack. 5. (for a spring) to unwind. 6. to unburden oneself, unbosom oneself, let off steam. 7. (for a tethered or harnessed animal) to get loose. 8. colloq. (for a man) to come, ejaculate (during sexual intercourse). 9. colloq. (for a woman) to come, orgasm.