アヒルぐち· also アヒルくち、あひるぐち、あひるくち、アヒルグチ、アヒルクチ
duck face; duck lips; facial expression where the lips are pursed and corners of the mouth raised
Also written あひる口、家鴨口
Noun
そのアヒル口ぐち，本当ほんとうに可愛かわいいと思おもってやってるの？
Do you really think that duck face is cute?