JSR - shortened version of
jug-a-saurus-rex (made
popular by
Neil in the inbetweeners). Used to covertly communicate to a male peer when an exceedingly large pair of specimens have been spotted.
“Watch out! There goes JSR”
“Oh my
god! Check out the JSR”
“I heard from this
bloke at Spoons last weekend that the last guy the JSR pulled was crushed by the weight of her jugs! He had to be rushed to A&E the
poor bugger!”