To maginalate is to be on someone's wavelength, when you really get each other and have to explain nothing.
The accent is on the second syllable, "gin". (pr. muh-gin-uh-late-in)
Coined by a girl named Tuesday back in 1993-ish.
The first time we were ever partners at spades, Michael and I were maginalatin' so well that we won every game.
Short for, or a combination of, ridiculously and really.
Your new pet Majungasaurus is ridley cute!