I've heard this term in a pirate movie or video game, not sure where. Since, I've been wondering what real meaning this sentence have.
"Jerry" came from World War II, and is used to refer to the Germans in general.
by shortening of German, originally from the First World War.
Them Jerry planes are bombing Leicester!
It was also used in a derogatory way, so it evolved to be used as an insult on basically everything.