double up

verb double up

• clamp — A clamp is a device that holds two things firmly together.
• clutch — If you clutch at something or clutch something, you hold it tightly, usually because you are afraid or anxious.
• clasp — If you clasp someone or something, you hold them tightly in your hands or arms.
• grip — the act of grasping; a seizing and holding fast; firm grasp.
• clinch — If you clinch something you are trying to achieve, such as a business deal or victory in a contest, you succeed in obtaining it.