Drop

From Rap Dictionary

noun

drop

1. Convertible car. Long as everybody get crunk in the drop -- Lil Bow Wow (Bounce with me [2000]).
2. To play music, or sing a song, could mean for the dj or mixer to add bass behind the singers vocals. Drop the beat.
3. To tell somebody something. Drop knowledge or science.
4. Cocaine that is to be sold, usually in large amounts; with straight drop being uncut cocaine. When the pimp's in the crib hoes drop it like its hot cuz his drop lookin' good... -- Slim Thug (Drop It Like It's Hot / Southern Smoke remix)

Verb

Drop / To drop somebody

1. To be killed or to kill somebody. The struggle it don't stop, until we drop - Krazy Bone (Untill We Drop [19??])
2. To release to the public. My album drops May 24
3. To play music, or sing a song, could mean for the dj or mixer to add bass behind the singers vocals. Drop the beat.
4. To tell somebody something. Drop knowledge or science.