I can't believe G-Union wasted good money watching the first in this Undercover Brother series to begin with! He must not have an appreciation for Mandy Moore movies.
by diction July 15, 2003

by pinchemotherloaf August 20, 2013

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

My lax bro Kevis such an undercover brother, he stops by gay bars every night to hook up with dudes behind his girlfriend s back.
by lil leroy October 23, 2022
