Jigglesauce is a term often used as a derogatory slur against people from the north of the United Kingdom. The word's origins are unknown, however the first documented use of the word Jigglesauce was back in 1167 A.D during confects between the northern and southern kingdoms of Britain.
The term has evolved over time, having variants in France, Germany, Greece, and Russia. Another commonly used variant of Jigglesauce is Zigglesauce, which has roots in the United States.
"Look at that dirty fucking Jigglesauce over there."
"Ugh, John, look. There's one of them Jigglsauces."
"These goddamn Zigglesauces, I swear."