poke

verb

1. 1.

   To push a finger, stick, or other pointed object into or at someone or something.

2. 2.

   To push or thrust something through or into a space.

3. 3.

   (Informal) To search or look around in a place, often where one should not.

4. 4.

   (Social media) To send a notification to someone on a social networking site.