Sc. [f. TIRL v.3 II.] An act of tirling (see TIRL v.3 3); loosely, a tap or tapping. Also as int.

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1808.  Jamieson, Tirl,… a sharp tap or stroke.

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1818.  Blackw. Mag., III. 531. The slight tirl on the lozen, or tap at the window.

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1819.  W. Tennant, Papistry Storm’d (1827), 19. Whan, hark! upon the gowden door, Tirl! comes a rap.

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