n. A warm loosely woven woolen stuff used especially for undergarments, bed-covering, etc., but also to some extent for outer garments, in styles adapted for that purpose. Some flannels have both sides alike; others have a long nap on one side and none on the other.n. A warming drink; hot gin and beer seasoned with nutmeg, sugar, etc.n. A person of homely or uncouth dress, exterior, or manners.Made of flannel; consisting of flannel: as, flannel clothing.