Question: what does work your jelly mean?
Answer: As their dancing is a form of role-playing, it is also self-expression. ... "You gotta work your jelly, / If you gon' / Dance with me tonight," goes the chorus, "By the looks I got you / Shook up and scared of me. / Hook up your seatbelt, / It's time for takeoff." How can you ever work hard enough to be ready?