P.
- Packer - An item (typically phallic in nature) which is placed in one's underwear to give the outward apperance of having a bulge.
- Passing - When someone who is transgender is easily or often assumed to be the gender they identify as without revealing said gender to others.
- Penectomy - Surgical removal of the penis.
- Penis - Male sexual organ used for urination and ejaculation.
- Periareolar - A type of FTM top surgery.
- Perisex - A term with a prefix meaning "around" or "near." Someone who is not intersex.
- Penile Inversion - A type of vaginoplasty.
- Penile-Preserving - A type of vaginoplasty.
- Period Underwear - An alternative to pads and tampons.
- Peritoneal - A type of vaginoplasty.
- P.F.A.B. - Presumed Female At Birth
- Phalloplasty - A type of FTM bottom surgery.
- P.M.A.B. - Presumed Male At Birth
- Post-op - Slang referring to a transgender person who has already undergone surgical transition. Sometimes referring to a specific surgery, or all relevant surgeries; depending on where that person is on their own personal transition timeline.
- Pre-op - Slang referring to a transgender person who has not undergone surgical transition. Sometimes refering to any and all surgeries, sometimes referring to a specific surgery, depending on the person in question's personal transition goals.
- Prin - Gender neutral alternative to prince/princess.
- Pronoun - A third-person term used to replace one's name in a sentence. Often used to indicate gender identity.
- Puberty Blockers - Treatment used to pause puberty.