"Jump/ing on da rocks" means,
A. To start the act of drinking, or to work towards getting "crunk".
B. Means to actually jump on rocks, in a form of quick fluid movements over and up rock and/or rocky areas such as hillsides or rocky rivers.
C.When a female is attracted to a male(you), in this case "da" is substituted with "my". This is a less often used form, the common form would be "balls" instead of "rocks".
Yo man tonight i gotta jump on the rocks, because i really wanna get drunk.

Dude lets go to upper falls and jump on da rocks.

Dude that chick was jumping on my rocks.
by Electromic October 26, 2007
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