"Woken up by a full bladder" 是被尿憋醒的意思。

这个短语描述的是在睡眠中被自己的膀胱憋满的感觉所唤醒的情况。它的来源可能源于人类的生理特征，即在睡眠中会有一种自然的机制使人们憋尿。在膀胱满了之后，人们就会感到不舒服并被唤醒。

下面是一些使用 "woken up by a full bladder" 的英文例句：

I was woken up by a full bladder at 3am this morning and couldn't get back to sleep.

My newborn son has been waking me up every night with his crying, but last night I was woken up by a full bladder instead.

I usually sleep through the night, but I was woken up by a full bladder and had to use the bathroom.

这些例句的中文翻译是：

我今天早上3点被尿憋醒了，但我又睡不着了。

我的新生儿每晚都会哭唤醒我，但昨晚我却被尿憋醒了。

我通常能一直睡到天亮，但我被尿憋醒了，不得不去洗手间。