Drop a gem on 'em 

1. To give the truth about a matter.
2. To tell what really happened.
3. Sharing wisdom to the clueless.
4. Taking you to school

You think I'm ignorant because of the way I dress but let me drop a gem on 'em.
I have a P.H.D. in Medical.
This is the way I choose to dress on my off days, it has nothing to do with my intelligence.

Drop a gem on 'em by GemsInfinite May 4, 2010

drop a gem on 'em 

Phrase used by east coast rappers Mobb Deep in a song of the same name. To drop a gem on someone is to out freestyle them, make a better beat than them, or have a better flow than them.

"Man, don't even front, I dropped a gem on you."

drop a gem on 'em by Wooten July 12, 2004