| Obscene (wotsit): | 1. part of a script set in an exterior location. 2. (thinghy): part of a soap opera set in a maternity unit. |
| Occult bookstore: | One that's hard to find. |
| Occult (interj): | That's where I left it! |
| Octopus (n): | 1. A cat that only has one life left. 2. The eighth masterpiece from a genius. |
| Odometer (n): | device displaying the time until your poetic licence expires. |
| Offended: | amputated |
| Ohm (n): | where the 'eart is. |
| Oklahoma: | French tree house (First). |
| Onomatopoeia (n): | 1. connected with going to the toilet 2. (excl.) Italian instruction in house-training a puppy. |
| Ontopic (n): | 1. a passport photograph. 2. something applied to the upper surface of a photograph. |
| Openings: | circular letters. |
| Operating Theatre: | a playhouse that is currently in full working order. |
| Opostrphe: | a comma |
| Oral Examination: | multiple choice test. |
| Out...: | interjection expressing a painful death. |
| Outclass: | yer average lesbian. |
| Outcome: | "Ugh..." |
| Outlaw: | openly homosexual piece of legislation. |
| Outlet: | gay-friendly realtor. |
| Outsider: | queer alcoholic apple drink. |
| Outsource: | http://www.popstarz.co.uk. |
| Outwit: | gay humour; one who flunks an Open University degree. |
| Overwaitea: | over-large teabags. |