v.1. To stick outward; protrude: A tag is poking out of your shirt. They were so thin that their bones were poking out.
2. To cause something to be dislodged by prodding it: Be careful with that ice pick—you might poke out your eye. I poked the ants out of the hole with a stick.
3. To extend something through some gap or hole, especially cautiously: The gopher poked its head out the entrance of its tunnel.