shotgun wedding 奉子成婚；闪电式结婚(如因女方怀孕)

【例句】
Mr. Deng and Miss Sun had a shotgun wedding yesterday.
邓先生和孙姑娘已于昨天奉子成婚。

Their cohabitation led to a shotgun wedding and a bitter divorce before too long.
他们同居后，奉子成婚，然后很快就离了婚。