To support, countenance, maintain, uphold, or aid (any good cause, opinion, or action); to maintain.
To incite; to assist or encourage by aid or countenance in crime.
To support, to cheer on.
To have a trip or any pleasurable experience with drugs.
To come to believe something; to change one's mind into a new position.
To appreciate, to enjoy.
Used other than figuratively or idiomatically: see get, behind.