hop on

verb4

1. •
   (informal) To join a phone call or video call.

   • That first night I was away, I couldn't stop thinking about her. I texted her several times to see if she wanted to hop on a call before I headed to bed. — 2017
2. •
   (slang) To begin playing a video game.

   • The night of March 14, Drizzy hopped on Fortnite to a stream of over 600,000 people, before revealing hours later that he had to leave to "pack for a flight." — 2018
3. •
   To reprimand or scold (someone); to attack or beat up (someone).
4. •
   To begin a course of PEDs (performance-enhancing drugs, e.g. steroids).

   • I don't think you should hop on like those guys because it's harmful to your health.
   • He started getting huge when he hopped on a course of steroids.