bring da ruckus

to cause a disruption

to hit someone hard enough to cause injury

to bring all your energy, will power, strength, skill, ability....etc to a competition

To excel academically.
To confer respect upon authority figures.

"Bring Da Ruckus" was a hit song on the album "Enter the Wu-Tang: 36 Chambers", from the legendary Wu-Tang Clan. When RZA shouted this, he meant either "having everybody in the club or in the neighborhood just go crazy", or "calling out all challengers".