What does crack me up mean? Thanks.
[url=http://dictionary.cambridge.org/define.asp?key=crack.up*1+0&dict=P ]To crack sb up:[/url]
to suddenly laugh a lot, or to make someone suddenly laugh a lot
They cracked up when they saw me in that hat.
There's something about that guy's face that simply cracks me up.

Does this help or do we need context? Emotion: smile
Students: We have free audio pronunciation exercises.
Yes, it makes sense to me. Thank you very much.
You're very welcome.
Emotion: smile