A deepthroat blowjob in which the receiver is being grabbed in the back of the head, pushed down on the penis until his/hers forehead is smacked against the giver's stomach, repeatedly
I gave this a girl a super hard Australian blowjob yesterday, her throat is still sore
To receive a blowjob while simultaneously being punched repeatedly in the balls in a speedbag fashion.
Guy: Sarah must be related to Ali, she just gave me the best Australian blowjob ever!