でかい

こんなデカイのがチャリの荷台に乗るわけないだろ。

There's no way one that big is going to go on a bike's luggage rest.

あいつでかいことばかり言ってるけど、そのうちぼろを出すよ。

He's always talking like a big shot, but it won't be long before all his faults are exposed.