Noun
gut reaction (plural gut reactions)
(idiomatic) An instantaneous reaction made without thought.
When he saw that lion leaping towards him, his gut reaction was to run.
Average people didn't analyze what they thought: they thought they thought, and half of it was gut reaction. C. J. Cherryh
When I see people stand fully in their truth, or when I see someone fall down, get back up, and say, "Damn. That really hurt, but this is important to me and I'm going in again”-my gut reaction is, "What a badass. Brené Brown
My gut reaction to all these questions is negative. But it appears that one set or the other must be answered in the affirmative. Either way, we are missing something fundamental about the nature of our universe. Stacy McGaugh
Aim for a gut reaction, and pay special attention to how your materials look when scanned quickly (as opposed to deliberately considered—because no one has the time or inclination to do that anymore). Source: Internet
It’s difficult for me to imagine anyone but Ellen doing my covers, so when the question was posed as to who would be my dream artist for my book covers, I went with my initial gut reaction – Andy Warhol. Source: Internet
‘However, that is just my gut reaction, I have no definitive grounds to rule you grammatically incorrect.’ Source: Internet