" creeping up "

 [ "Creeping Up A Storm" ]

1: A phrase used when "creeping" just isn't sufficient to fully describe a person's sketchy actions.

  * e.g.,  ... Bob walked behind us and listened to our entire conversation. He was creeping up a storm. 

 [ "Creep-up-on-er" ]

1:  The act of slyly giving back a crazy soon-to-be-ex-girlfriend her stuff. This is done when a man wishes to break up but wants to avoid seeing or talking to the woman. Its not necessarily an act of cowardice, because due to the woman's fragile emotional state, it might actually be best for everyone involved. (Leaving an explanatory note is optional).

  * e.g.,  ...  Man, that bitch was psycho. I had to creep-up-on-er and leave her shit in a plastic bag on her front door. 

 [ "Creeping up on the come up" ]

1: To work yourself into the proximity of your desired subject with the sole purpose of shamelessly hitting on them. Said subject is usually aware of your stalking and may be seen rolling her eyes and muttering, Lord, he is creeping up on the come up AGAIN!'

  * e.g.,  ... Ok, ladies, stick together. Keep an eye out for nerdlingers trying to creep up on the come up!