informal <非正式>
1
- used to express the sound of a forcible impact砰, 嘭：
the bombs landed - wham! - right on target.
那些炸弹嘭的一声刚好击中目标。
1.1
- used to express the idea of a sudden, dramatic, and decisive occurrence表示突然、戏剧性地发生的决定性事件得！哇！：
he asked me out for a drink, and - wham! - that was it.
他叫我出去喝酒——得！——就那样了。
(whammed, whamming)no obj., with adverbial
1- strike something forcefully砰砰地打; 重击：
trucks whammed into each other.
卡车砰砰地互相撞在了一起。
1.1
- make a loud sound as of a forceful impact发出砰砰声：
my heart was whamming away like a drum.
我的心跳得像鼓一样砰砰作响。
词源
1920s: imitative.