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."
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.