[toot] vb [prob. imit.] vi (ca. 1510) 1 a: to sound a short blast "the horn ~ed" b: to sound a note or call suggesting the short blast of a wind instrument
2: to blow or sound an instrument (as a horn) esp. so as to produce short blasts ~ vt: to cause to sound "~ a whistle" -- toot.er n
[2]toot n (1641): a short blast (as on a horn); also: a sound resembling such a blast [3]toot n [Sc toot to drink heavily] (ca. 1790): a drinking bout: spree