Sentence:  Hell, those jacks was laughing and laughing like to wet themselves. Even Ernst had a smile on his face, shaking his head like he ain't believed what he just seen. / ‘Aw, Sid,' Chip gasped. ‘Holy hell, Sid, you <WSD>priceless</WSD>.' 
Meaning of the word marked with <WSD> tags:  Very amusing, hilarious.