"Rocking" is a verb used by today's youth meaning "to have sexual intercourse." "The cashbox" is a nickname many have given to theRick's mom's nauty bit when used in a manor to make money.
Tom: Yo theRick, sorry man, but I had to rock the cashbox last night. It was just too good to pass up.
Kevin: I rocked the cashbox last night too! awesome!
A form of music usually involving guitars, drums, bass and vocals. Also a dismissive or 'whatever' type statement given when there is nothing else to say, or as a prefix to an equally dismissive or 'whatever' type phrase.
"Rock 'n' roll, deal with it."
"Whatever, rock 'n' roll."
Term used to describe someone being shutdown or shutup. Often the person has contradicted and or embarassed themselves and therefore proven the other person's point.
"You just said earlier that you prefer Coles to Aldi for nutritional value, yet now you say you like Coles better for the larger variety of chocolate candy bars based on taste preference... Rock job bro!" said Nathan to his younger, more attractive yet hairier brotherMurphy.