Trifle Tri"fle, v. i. [imp. & p. p. Trifled; p. pr. & vb. n. Trifling.] [OE. trifelen, truflen. See Trifle, n.] To act or talk without seriousness, gravity, weight, or dignity; to act or talk with levity; to indulge in light or trivial amusements. They trifle, and they beat the air about nothing which toucheth us. --Hooker. To trifle with, to play the fool with; to treat without respect or seriousness; to mock; as, to trifle with one's feelings, or with sacred things.