Definition of reak in English:

reak

(also reek)

noun

Scottish
historical
  • A prank; a playful or capricious trick, a riotous practice. Chiefly in plural Compare "rex".

Origin

Late 16th century; earliest use found in George Gascoigne (d. 1577), author and soldier. Origin uncertain, as is the earliest form of the word. Apparently related to rex: see discussion at that entry. Perhaps compare also freak.

Pronunciation

reak

/riːk/