A Creepin 

When some really sketch looking fellow (or fella) is being a creeper where they think no one will notice (sadly, they notice).

Posh Spice - yo, do you see that midget over in that dark corner?
Paris Hilton - yup he's a creepin alright

A Creepin by Not a Creeper March 11, 2009

Creepin on a pick up 

When a friend creeps up to the girls you are picking up.

When a friend doesn't have the confidence to approach a group of girls at a bar/club, so he gets you to do the approach, and break the ice, then he comes up from nowhere, and you are forced to introduce him to the girls.

This way he has an excuse to introduce himself to the girls, this also makes him look cooler to the girls, even though he is just mooching of the my effort.

This works using a girl to do the approach too. Bring one of your female friends to the bar, and get her to spark a conversation with girl(s) and then creep up on it.

We where at a club last night and I was talking to mad girls, and buddy kept creepin on a pick up.

Creepin on a pick up by JayRipper October 17, 2009

be creepin like a baller 

To be stuck in a trafic jam or block; to be aggrivated

"Yesterday I was in New York and I was Creepin Like A Baller

be creepin like a baller by Evan Baker February 19, 2005

Creeping Up A Storm 

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

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

Creeping Up A Storm by Yeaaaaaaaaaaaaaah Bob November 11, 2010

Creeping like a boss 

The act of creeping on someone unintentionally using Facebook's new "creep" feature.

*scrolling this Facebook*
*peripheral vision catches the updates on the new "creep" feature*
*finds out Bob commented on Billy's status*
*finds out Tom and Mark Zuckerberg are now friends*
*finds out Ticonderoga posted a sexual message on Bonquisha's wall*

Damn! I am creeping like a boss!

Creeping like a boss by Simple Cuboidal Epithelium September 23, 2011