malfeasance /mal-fēˈzəns/

1. Evil-doing, wrongdoing (rare)
2. An illegal deed, esp by an official (law)

• off the mark
• off the peg
• off-the-peg
• off the rails
• off the record
• off-the-record
• off the reel
• off the shelf
• off-the-shelf
• off the shoulder
• off the top of one's head
• off the track
• off the wagon
• off the wall
• off-ward
• off-wards
• off-white
• off-whites
• off with
• offy
• OFGAS
• Ofgas
• OFGEM
• pill-popper
• pills