Push in Definition 1 of 3Pro Tip 1/3Physical Action Think of 'push in' as a gentle physical act, often done carefully to avoid damage. After you sign the document, push in the drawer. Pro Tip 2/3Completing a Step 'Push in' often follows instructions regarding the use or assembly of items. To activate the device, push in the red button. Pro Tip 3/3Space Importance Use 'push in' to express the need for something to fit into a limited space. Push in the cork gently to secure the wine bottle.