gut /ɡʌt /
1 (also guts) the stomach or belly:
the terrible pain in his gut.
▪ Medicine & Biology the lower alimentary canal or a part of this; the intestine:
microbes which naturally live in the human gut.
▪ (guts) entrails that have been removed or exposed in violence or by a butcher.
▪ informal a fat stomach.
▪ (guts) the inner parts or essence of something:
the guts of a modern computer.
▪ (guts) [with modifier] used to form names attributing negative characteristics to people:
what’s the matter with you, misery guts?
2 [often as modifier] informal used in reference to a feeling or reaction based on an instinctive emotional response rather than considered thought:
I had a gut feeling that something was wrong
trusting his gut instinct, he went ahead and made the call
I could feel it in my guts—he was out there, watching me.
3 (guts) informal personal courage and determination; toughness of character:
he didn’t have the guts to tell the truth.
4 [mass noun] fibre made from the intestines of animals, used especially for violin or racket strings or for surgical use.
5 a narrow passage or strait.
(guts, gutting, gutted)
1 remove the intestines and other internal organs from (a fish or other animal) before cooking it.
▪ remove or destroy completely the internal parts of (a building or other structure):
the fire gutted most of the factory.
2 British informal cause (someone) to feel extremely upset or disappointed:
it guts me to think about what my mother and brother missed out on.
as rough as guts (also rough as guts) Australian New Zealand informal
lacking in refinement or sophistication:
the housing was rough as guts.
bust a gut informal
make a strenuous effort:
a problem which nobody is going to bust a gut trying to solve.
laugh very heartily:
his facial expressions and ad libs were enough to get audiences to bust a gut.
— one’s guts out informal
used to indicate that the specified action is done or performed as hard as possible:
I’ve worked my guts out to get where I am today.
hate someone’s guts informal
feel a strong hatred for someone.
have someone’s guts for garters British humorous
punish someone severely:
if you breathe a word to anyone, I’ll have your guts for garters.
– ORIGIN Old English guttas (plural), probably related to gēotan ‘pour’.