prick ear
/ˈprɪk ɪə/noun
1The erect pointed ears characteristic of some animals, especially dogs; ears that are pricked up or stand erect. Formerly also occasionally in singular Compare prick.
2A person whose ears protrude conspicuously. Frequently as a term of abuse. Now rare.
Origin
Late 16th century; earliest use found in John Bridges (?1536–1618), bishop of Oxford. From prick + ear, after prick-eared.