(n.) To hella creep on someone. It can also be used any way, as long as it has a negative connotation. It really is the perfect word, not only does it sound cool, but it sounds creepy which makes it perfect to use! It also rolls off the tongue easily.
That guy hella schlooped on me, he won't leave me alone.
Wow, what a schloop!
I was sitting there, then he schlooped up my chair when I left.
He is such a schloop.