Caucasian hip hop radio hosts who try to be with it by choosing a name associated with underground hip hop music in order to sound cool on the radio. However the name itself to regular people is actually lame.
Did you hear that O-Dog on the radio yesterday, man that guy is ill. He is dope.
When a person of chinese decent attempts to sound like he originates from the ghetto areas of Phillidelphia. The expression usually is meant to define a mass number of or large amount. It is also used randomly in the middle of sentences that express anger. Using this expression is a good example of Haydoning (a failed attempt)
Chinese person: "I'm gettin a huge dickload o' dog fuckin notifications!!!!"