prick up
verb(prick)
to pierce slightly with a sharp point
prick up
verb(prick)
to affect with anguish, grief, or remorse
prick up
verb(prick)
to ride, guide, or urge on with or as if with spurs : goad
prick up
idiom(prick)
to cause (the ears) to point upward —used figuratively of people to suggest listening carefully