The boy you see on the subway or on your way somewhere but know nothing about him but some quick eye contact makes you believe that for some reason he’s the "one" but don't talk to him and then walk past each other and never see each other again.
Girl 1: omg I just saw my husband!!!
Girl 2: well did u talk to him
Girl 1: nope he’s a ghostboy, I fucked up :(
Girl 2: he would only exist in your fantasy’s </3
A significant other you only meet to have sex with. It's called ghostboy because you only see them when they're under a bed sheet and go though your walls, just like a ghost.
The dead bitch on the dsmp who collected a lot of totem of undying and then died cuz he only had one life and he doesnt remember how he lost his other ones
Tommy: Do you go by Ranboo? Ghostboo feels more fitting, you just kinda...
Ghostboo: Or you can just do like “Boo”, it’s a nice little ghost pun there, I’ve been thinking—
Tommy: Well, yeah, I uh, I’m maybe not gonna call you my boo, Ranboo.