grouse in Bulgarian

(countable) Any of various game birds of the subfamily Tetraoninae which inhabit temperate and subarctic regions of the Northern Hemisphere; specifically, the red grouse (Lagopus lagopus scotica) native to heather moorland on the British Isles. [from 1530s]

(intransitive, originally, military, _, slang, informal) To complain or grumble. [from late 19th c.]

(intransitive, originally, military, _, slang, informal) To complain or grumble. [from late 19th c.]