You totally came here because of Justin Bieber's tweet.
Anyway, it means Dirty Love and he was refering to Sean Kingston's and Nikki Minaj's song Letting Go (Dutty Love).
Dutty Dutty Dutty love I'm feeling like you letting go
The best person you could ever hope for. They care about others more than they do themselves. Though they are looked over time and time again, but they wait in the shadows like a ninja waiting to strike. They also love Chuck Norris.
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.”