pricks up

Verb

prick up (third-person singular simple present pricks up, present participle pricking up, simple past and past participle pricked up)

1. (intransitive) To rise and become more alert.

   Synonyms:

   prick

2. (transitive) To raise (one's ears).

   Synonyms:

   prick

3. (plastering) To apply an undercoat of plaster in order to create a smooth surface for the final coat.
   • Either the rubble-wall builder, be he bricklayer or mason, must acquire much of the skill of the plasterer, or the plasterer must learn to pack up brick or stone rubble into the form of a wall, and to give more effect to the mortar with which he plasters, than when he pricks up against a lathed...1849, William Hosking, Healthy Homes