Undercover Swedish Brother

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!

by yes!yes!yes! March 20, 2014

Underdong

Having a second penis, smaller than the one on top.

Jim has an amazing underdong.

by paper21ify March 29, 2015

Undercover alcoholic

A alcoholic but a secret one

Your a undercover alcoholic

Vanessa 2k15

by Theradgeorge December 5, 2015

undercover push-ups

The act of humping your spouse in the push-up position under bedsheets.

Susy and I were doing undercover push-ups last night.

by .OG. July 19, 2016

Underdog

Someone that votes for the person to that has less chance to win a competetion. Just for fun, personality, or equality/balance

Mike tyson vs someone random lame guy.

Guy1: hey. Mike tyson is a champion. Everyone knows that. Im going to vote for him.

Underdog:Im going to vote for the lame random guy.

by TheTellerius August 15, 2016

Undercover squat

When you're so obsessed with working out that you find any opportunity to squat.

I did many undercover squats before finally sitting on the toilet

by Imalljammedup December 13, 2016

undercover megafaggot

Someone who is suspected of being a mega faggot.

"Have you seen how lincoln loud acts, je is obviously an undercover megafaggot

by OstrichDuzUrMum January 3, 2017