—v.i. 1. to improvise a musical passage in a casual manner, esp. as a warm-up exercise.
2. Informal. a. to play; toy: to noodle with numbers as a hobby. b. to improvise, experiment, or think creatively: The writers noodled for a week and came up with a better idea for the ad campaign.
—v.t. 1. Informal. a. to manipulate or tamper with: She denied that she had noodled the statistics to get a favorable result. b. to make or devise freely as an exercise or experiment (sometimes fol. by up): The architects noodled up a model of a solar house. 2. noodle around,Informal.to play, experiment, or improvise.