Found 5 full forms for HTFU
| Term | Full Form | Category |
|---|---|---|
| HTFU | Harden The F*** Up 
| Others |
| HTFU | Harden the Freak Up
| Others |
| HTFU | High Temperature Fouling Unit
| Others |
| HTFU | Hurry The F*** Up
| Others |
| HTFU | Hurry The Freak Up
| Others |