Hole-in-the-corner and Hugger-mugger

Hugger-mugger and hole-in-the-corner are semantically related In some cases you can replace phrase "Hugger-mugger" with "Hole-in-the-corner", this phrases are similar.

Hugger-mugger adjective - Lacking in order, neatness, and often cleanliness.

Hole-in-the-corner and hugger-mugger are semantically related in clandestine topic. You can use "Hole-in-the-corner" instead an adjective phrase "Hugger-mugger".