African marsh owl
noun
The marsh owl, Asio capensis.
Origin
1930s.
- on the pig's back
- on the plus side
- on the port (or starboard) tack
- on the prod
- on the prowl
- on the quiet
- on the rack
- on the rails
- on the rebound
- on the right (or wrong) track
- on the right side of
- on the rise
- on the road
- on the rocks
- on the rope
- on the ropes
- on the run
- on the same page
- on the scent
- on the score of
- on the scrounge
- on the sea
- on the shelf
- on the sick
- on the side