でかい

あいつでかいことばかり言（い）ってるけど、そのうちぼろを出（だ）すよ。

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

こんなデカイのがチャリの荷台（にだい）に乗（の）るわけないだろ。

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