| Abbreviation | Definition |
|---|---|
| HBO | Horrifically Bad Organization |
| HBO | Hot B***es Only |
| HBO | Hot Beatle Orgasm |
| HBO | How Bout Off |
| HBO | Human Body Odor |
| HBOC | Hummin Birds On Crack |
| HBOF | Happy Birthday Old Fart |
| HBOJ | History of the Beard O' Jobs |
| HBR | Home Boy Routine |
| HBU | HillBilly University |
| HC | Hacking Chumps |
| HC | Horse Crazy |
| HCD | Hangnail Cream Division |
| HCE | HALO: Combat Evolved |
| HCFA | Here Comes Further Aggravation |
| HCI | Hide The Contents Indefinitely |
| HCL | Happy Clown Laughter |
| HCP | Hurwitz Controls The Process |
| HCR | Horse City Related |
| HCV | Happy Clan of Vegetarians |