Question 1

What does "poz up" mean?

Accepted Answer

(Highly specialised slang) To become HIV-positive.

Question 2

Is "poz up" formal or informal?

Accepted Answer

"poz up" is register-neutral — appropriate in both casual and formal contexts. Highly specialised slang from certain subcultures online, particularly associated with 'barebacking' communities and related online forums. 'Poz' is community shorthand for HIV-positive. This term may be deeply offensive to many people; learners should be aware of it for comprehension only and avoid using it. Not used in standard or medical English. Extremely rare outside specific contexts.

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