It's a saying in which you say out of sheer fustration instead of actually swearing.
What you tell people what it means may vary but commonly used as That's not nice.
However what your really saying is Fuck You And The Horse You Rode On.
In a professional setting or a place with parents and their children. Instead of embarassing yourself by cussing like an idiot. Simply in a calmly matter say Fuathryo. To them, It may be another language.
After being told by my best friend that he cheated with my girlfriend; Realizing my daughter was in the room, I told him fuathryo and left.
The grindset is a contemporary ideology of self-exploitation disguised as strength, deeply tied to the aesthetics of the “sigma male” and to new digital forms of patriarchy. It promotes the idea that human worth depends on productivity, economic success, absolute emotional control, and the ability to work endlessly, turning vulnerability, rest, community, and tenderness into signs of weakness. Beneath its rhetoric of discipline and power often lies a profound inability to relate healthily to pain, fragility, and human interdependence.
“That’s the grindset, brother. While weak men sleep and complain, sigma males stay disciplined, work in silence, suppress emotions, and build power while everyone else wastes time chasing comfort.”