skua /ˈskjuːə/noun 1verb 1forms 3 noun1 •Any of various predatory seabirds of the genus Stercorarius that often chase other seabirds to steal their catches. verb1 •(slang) To steal, or borrow without permission.We skua crew mess pastries and cheese, skua toe warmers, gloves. I skuaed her chocolate. Can't help it. — 2019 formsskuaed · skuaing · skuas