Wag·gish a.
1. Like a wag; mischievous in sport; roguish in merriment or good humor; frolicsome. “A company of waggish boys.”
2. Done, made, or laid in waggery or for sport; sportive; humorous; as, a waggish trick.
-- Wag*gish*ly, adv. -- Wag*gish*ness, n.
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waggishness
n : waggish behavior [syn: waggery]