Çük (Çuq; [ɕyk] or [ɕuq]; Cyrillic: Чук, Чүк, Чӳк, Чӱк) was a holiay of Keräşen Tatars, Chuvashes, Udmurts, preserved before the beginning of 20th century. It was celebrated as summer, before the Whitsunday or at the Poqraw eve (The Intercession). Commoners arranged a collective meal, and called for rain, douche themselves. Recent years Çük is celebrated in several districts of Tatarstan and is hold on the manner of Sabantuy.