Kansai dialect: to burst out laughing or to find something so funny that one begins to laugh; to be made to laugh.
その話、ほんまに笑けるわ。
That story really makes me laugh.
みんなの前で転んで、思わず笑けてしまった。
I tripped in front of everyone and couldn't help laughing.
あの漫才は最後のオチで笑けるなぁ。
That comedy duo's punchline at the end is hilarious.