split a/(one's) gut

(redirected from split their guts)

split a/(one's) gut

To laugh uproariously or hysterically; to laugh so hard that it causes one's sides to hurt. Your jokes are perfect for your speech tonight. You'll have them splitting their guts! I was splitting a gut listening to your uncle's hilarious stories.
See also: gut, split

split a gut

 and bust a gut 
1. Fig. Inf. to laugh very hard. He laughed until he nearly split a gut. The clown made me bust a gut laughing.
2. Fig. Inf. to work very hard. I split a gut to get this place fixed up in a week. Don't bust a gut cleaning up for me. I love things that are a bit messy.
See also: gut, split

split a gut

1. tv. to laugh very hard. He laughed until he nearly split a gut.
2. tv. to work very hard. Don’t split a gut for me. I love things that are falling apart.
See also: gut, split