gen up

verb2

1. •
   (UK, informal) To study in detail; to familiarize oneself with all available information.

   • I find the doctors are very surprised when they realise I'm genned up about my condition. — 2005
2. •
   (UK, informal) To inform or teach with all relevant details; to brief.

   • It was also new to be listening to talk of bribery and corruption in high places, and Michael Murray saw it as his duty to gen me up on this. — 2007