start a hare

start a hare

BRITISH, OLD-FASHIONED
If you start a hare, you introduce a new idea or topic which other people become interested in. Some work needs to be done before the connection between aluminium and heart disease is proved, but Mr Birchall has started a hare that many researchers will be watching. Note: To `start' a hare means to disturb it and cause it to leave its hiding place, so that the hounds start chasing it.
See also: hare, start

start a hare

raise a topic of conversation. British , dated
The rapid twisting and running of a hunted hare is here used as a metaphor for the pursuit of a topic in an animated conversation, especially one in which the participants hold strong views.
See also: hare, start