Oral sex, or a blowjob. From the Nottinghamshire village of the same name, whose initials also spell BJ.
Can be used either on its own, or in the form of, "Taking someone to Burton Joyce."
"Mate, did you hear what happened between Trevor and Damaris?"
"Yeah, man, I heard they got to third base!"
"You mean he took her all the way to Burton Joyce? Sick, man!"
The opposite of a Burton Joyce (BJ) - in other words, Cunnilingus.
As with a Burton Joyce, a JB can be used either on its own, or as part of the phrase, "To take someone to meet Joyce Burton."
"So what happened after Trevor took Damaris to Burton Joyce?"
"Well, I heard she took him on a little detour to meet Joyce Burton!"