One whom publicly pleasures themselves.
by The real Walter March 14, 2022

"Did you see Michael Fassbender since he grew a beard?"
"Yep - I had no idea he was an undercover ginger"
"Yep - I had no idea he was an undercover ginger"
by Keemer December 13, 2012

When one takes a dump onto a bed prior to engaging in sexual intercourse with one's partner on top of the soil without the partner knowing.
Henry: Dude, I'm about to get laid but I really need a shit. What shall I do?
Harry: Just be her Undercover Swedish Brother!
Harry: Just be her Undercover Swedish Brother!
by yes!yes!yes! March 20, 2014

The act of stretching one's scrotal skin out with two hands - using thumb and forefinger - parallel to a primary surface (i.e. a bed or floor) until smooth, with the penis resting on top, utilizing the grip and taut skin to move the scrotum up and down at various speeds to have the penis bounce off of it continuously.
by MyNutsRSweaty January 23, 2019

A cocktail that consists of any energy drink with some poured off the top with two shots of your choice poured into the can to-go.
by BLTegre October 8, 2025

Jimothy: I just donated to the Jumpstart Charity box at Canadian Tire!
Billiam: you mean the Undercover Tip Jar??
Billiam: you mean the Undercover Tip Jar??
by Harvey HugeCock May 23, 2021

by Sariel October 22, 2014
