A half-friend is a person you talk, or hang out with a lot, but you don't have a very strong connection with them, or they have friends they like more.
Me and Andrew are half friends. We talk a lot, and we meet up after school, but he likes his friend Max more.

I'm Jessica's half friend. She has other friends she likes, but we walk together, talk together, and hang out at the mall.

Me: Half-friend means you are friendly with someone, but you have other friends you like more.
by fadjkals;fdsjkal; June 11, 2016
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when you set your privacy settings on facebook to not include tagged pics, access to your wall, etc for a select group of people. your aunts, uncles, little cousins, (insert anyone you don't want seeing incriminating photos of you or stalking your shit) keep joining facebook and you have no choice but to friend them... you can at least half-friend them to minimize stalking, ridicule and generally being a bad influence.
"I can't believe aunt viv joined facebook, now she comments on every photo and every status update, it's getting annoying. as if i needed her knowing i 'ended up puking in a bush' and was crazy drunk last night. my friends left that little anecdote on my wall and she commented 'you got some splainin to do' Ugh."

"You should have half-friended her like I did, she can't see shit on my profile."
by tuuesday April 29, 2010
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Someone you're friends with, but you do not hang out with or get together with. This can also mean someone you talk to at school, whose phone number you don't have or someone you just TALK TO (and do nothing else with each other). More like an advanced acquaintances.
"Yo that guy Rico is my homie"
"No, he's just your half-friend, since you don't ever hang out. You don't even got his phone number!"
"Yeah, all we do is just talk sometimes.
by the dicky-tionary April 4, 2018
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A friend that known for half of your life
Aiden and John are both half life friends of mine.
by Ironman99 October 15, 2022
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