The article aims to analyse one of the specific objects of Udmurt traditional culture, chuk (in southern dialects) / tug (in northern dialects), i.e. red thread/yarn; a bunch or bundle of different coloured threads, fringes, ribbons, shreds; towels, bedspreads, and kerchiefs. The multifunctional nature of the object is revealed in everyday and ritual contexts; it can be of different forms and convey various meanings. Depending on the situation, chuk is regarded as a label, a protective charm, a sacrifice gift, or a tangible symbol of a substitute for the human soul. In everyday situations chuk is used in apotropaic magic and folk medicine. For example, red thread/yarn is worn around the ring finger to cure a sty, or it can be worn on an infant’s right wrist to protect him or her against the evil eye. A bunch of wool or linen threads is attached to knitted and woven things when their pattern is copied. The custom of marking young animals with brightly coloured strips of material, usually red, has survived to this day. Chuk is an essential attribute in the Udmurt calendar rites of the spring and summer cycles, wedding ceremonies and recruit rites. In calendar rituals chuk is recognised as a kind of sacrificial offering or gift. Praising flourishing nature alongside youth and early adulthood, the rites of welcoming spring and summer (Vöy, Shrovetide; Akashka/Byddzh’ynnal, Easter; Gershyd, Whitsunday) are regularly marked by the offering of different types of cloth (towels, kerchiefs, head towels for young married women) to mark passage through different stage of life. At different stages of the wedding ceremony (including pre- and post-wedding) the semantics of chuk depends on how it correlates with the participants of the ceremony: in regard to the bride chuk is definitely recognised as a gift, in regard to the groom’s relatives and friends as a way to personify a humorous image of strangers. In recruits’ rites chuk is hammered into the main ceiling beam of the recruit’s house and serves as a material symbol of, or substitute for, the human soul of the recruit, combining the functions of a label, a protective charm and a sacrifice.