A term used to describe some with similar features to a monkey e.g a lot of hair all over there body, a protruding jaw or similar intellect to trust of a monkeys
Person 1: don’t like that new George guy there’s something wrong with him
Person 2: I know what you mean his jaw is a bit suspicious
Person 1: yeah a bit like an undercover monkey
Person 2: I know what you mean his jaw is a bit suspicious
Person 1: yeah a bit like an undercover monkey
by Mr chuckey smile January 17, 2018

A girl who you would never in a million years expect to have but does in fact have an infected, un-washed, or undesirable vagina.
by Steal-Lene July 16, 2020

The girl that you wouldn't expect to be easy and hides her body count very well. Another word for Closeted Whore.
Ledantre: This girl _____ I've been talking to is honestly the best dude.
Sharmarquerifa: Yoooo, you ain't heard? She one of them Undercover Slut's, don't hit it dude you might catch somethin'.
Sharmarquerifa: Yoooo, you ain't heard? She one of them Undercover Slut's, don't hit it dude you might catch somethin'.
by BubbaGumpsShrimpBoat February 6, 2020

Someone familiar with writing javascript, htmls, code, and likes to spy electronically. These folks often feel that their sense of the world is better than others, justifying their need to spy. Often than not, they are lazy pukes, ignoring their own problems to examine others.
by FeralRedhead$ May 9, 2018

by .OG. July 19, 2016

If you talk to someone and their shoulder smells like a wife-abuser's nutsack... Don't say anything!
Undercover Guy "Hey, so... Give me the down-low on you whole job or whatever."
Overcover Guy *sniff* "Why do you smell like a nutsack?"
Overcover Guy *sniff* "Why do you smell like a nutsack?"
by Hym Iam August 3, 2023

A young man, usually from late teens to early adulthood, hiding his homosexual tendencies. An undercover yummie bird must be good looking, give away hints of homosexual behavior but yet deny any accusation of same sex physical attraction.
That man is looking at the guy all the time, I am certain he is an undercover yummie bird waiting to be discovered.
by guilherme128 June 12, 2007
