Undercover Ginger

One who does not show visible signs of being a ginger (ie red hair or freckles), but days of not shaving reveal red facial hair. This allows the individual the ability to hide ones gingerness from the world.

By simply shaving his red beard, Tom was able to hide his true ginger identity and go about his day as an undercover ginger.

by Rgogo September 14, 2012

Undercover Slut

A girl who one would not assume gets with a lot of guys (whether because she is weird, nerdy, or just really nice) but in reality has hooked-up with half the school.

Bob: That Mindy girl's pretty cute, she seems really smart though. I wonder if she'd get with you.

Joe: Dude, she's an undercover slut. She gets with everyone!

by M.C. Skizzlet September 3, 2010

undercover fat

Someone who doesn't look fat while clothed, but secretly hides a gut

I had a locker next to that kid in gym class in high school, and trust me, he's undercover fat.

She looks hot at first, but she's just an undercover fat girl hiding beneath that sweatshirt

by RC-Cola December 21, 2005

undercover cop

To steal.
The term "cop" means to obtain, and undercover implies secrecy.
To undercover cop something means to take it without anyone knowing: to steal.

I might have to undercover cop that when Akbar isn't looking..

by Greg B. September 12, 2005

Undercover Anal

Going through the day with anal beads or a dildo in one's ass; unbeknownst to the general public.

"Charles looks like he's been horseback riding all day."

"Naah; he must be going Undercover Anal."

by Pastamon March 11, 2010

undercover cockhunter

A female who appears to have the librarian-type look going for her, and appears to be a good girl, when in reality she is the biggest freak you have ever met in your life.

Anna seems like a nice girl with her loose clothing and glasses, but I know she's an undercover cockhunter.

by jflesh November 16, 2005

undercover agent

A bed fart that stays under the duvet and goes unnoticed.

Anna: I'm going to get a glass of wa... Eww!
Jack: shouldn't have moved! I planted an undercover agent

by Si6263738 September 29, 2013