get behind

verb5

1. •
   (informal) To come to believe or support something.

   • I can't get behind the idea that all homeless people are just too lazy to work.
2. •
   (informal) To support, to cheer on.
3. •
   (informal) To appreciate, to enjoy.

   • I could definitely get behind a fun restaurant in this town.
4. •
   (slang) To nag or pressure (somebody).
5. •
   (informal) To have a trip or any pleasurable experience with drugs.