Hugger-mugger is unusual as it can be used as both a noun and an adjective.

When used as an adjective it can mean either confused and disorderly or secret and clandestine. As a noun it refers either to disorder and confusion or secrecy or secretive behaviour.
His behaviour is hugger-mugger.
The rally descended into hugger-mugger.
by AKACroatalin March 7, 2019
Someone who pretends they are what they're not (often used in Shakespeare as an insult)
Corinne acted like such a hugger-mugger when she hung out with the "popular" people at lunch instead of us.
by ShakespeareGal June 22, 2009
well i told the officer to fuck off in a state of hugger-mugger induced rage!
by Slick May 27, 2003
People who stand on street corners with signs asking to give out "Free Hugs". Usually the intended feelings of good cheer and peace intended by these individuals comes across as creepy and vaguely innappropiate in an undefinable manner.
Allison: So I was in town yesterday and there were these two girls on the street corner with signs that said "Free Hugs."

Natalie: OMG!!! Those were so hugger muggers.

Allison: Yeah, I felt kinda violated.
by Comradski June 23, 2008
hugger mugger is the shittiest game on the planet
"pictionary is a hugger mugger game"
by The Rook May 26, 2005
I'm sick of all these sneaky types creeping around and hugger muggering
by Dartistic June 21, 2018