Describes a fabric patch with mismatched patterns that's been sewn onto damaged fabric to fix the clothing. British WW2 slang named after a comic strip called "Jimmy and his Magic Patch" that appeared in The Beano in 1944, a story about a schoolboy who frequently time-traveled by accident thanks to a patch sewn on the back of his school trousers.
My jacket's right elbow ripped, but luckily, I sewed it up with Jimmy's magic patch.
The act of self or another persons masturbation.
Damn you know that girl Susan, she gave the me ol’ Jimmy shake last night!
He is super cool and not gay at all. Jimmy is my best friend.
let's hang out with Jimmy Peterson!
YAY WE LOVE JIMMY
(Middlefinger) or sign of friendship
Gave my friend some Jimmy&Balls!