irish bull

His explanation for being late was an Irish bull: he said he arrived early because the traffic was heavy.

他对迟到的解释自相矛盾：他说因为交通拥堵所以早到了。

The politician's speech was full of Irish bulls, promising to cut taxes while increasing spending.

这位政治家的演讲充满了自相矛盾的说法，承诺减税的同时增加支出。

She claimed she never repeats herself, but that statement itself is an Irish bull.

她声称自己从不重复，但这句话本身就是自相矛盾的说法。