Dub

From Rap Dictionary

noun

dub

1. Another word for dancing (grinding)
2. A $20 sack of weed.
3. A 20 dollar bill.
4. A special way of remixing a bassline, or a special kind of bassline, that emerged from Jamaica in the 1960s.
5. A rapper called WC (pronounced Dub C), member of Westside Connection.