A favorite person is someone that a person with a mental illness will be heavily dependent on, obsess over, and often looks up. It’s most common with people who are neurodivergent to have a FP and they usually only have one, but some people can have many.
"My Fp hasn’t texted me in two days, they're getting sick of me :(."
A gamer's way of announcing disappointment in their own or another's idiocy, as face-palming (smacking your face into your palm or vice versa). Sometimes used instead of smh.
(1) Spyder1: Dude, get ur butt 2 the cliffs already
You: *runs into a wall*
You: *fp*
(2) Spyder1: Hey I gotta ring off 2 sleep.
You: K dont 4get 2 save...
Spyder1 has signed off
Spyder1 has signed on
You: Hey where r u?
Spyder1: 4got 2 save...
You: *fp*