Like a sock to the gut.这句话是什么意思?

问题描述:

Like a sock to the gut.这句话是什么意思?
请指教~谢谢-V-
啊...抱歉,我应该给出完整的句子,应该是:
That's what I like about you. You're honest. Like a sock to the gut.

俗语
.感觉像吞了只苍蝇般难受.