Definition of pirr maw in US English:

pirr maw


Irish English, Scottish, Northern
  • 1Chiefly Irish English (northern). A tern, especially the common tern, Sterna hirundo, and the roseate tern, S. dougallii.

  • 2The black-headed gull, Larus ridibundus.


Mid 18th century. From pirr, imitative, after the hoarse cry of the birds + maw.