someone who thinks you're friends with them, but you're not. they're annoying, weird, stupid, boring, everything you wouldn't want a friend to be. they follow you everywhere, and they want to be just like you. if you have a latcher, drop them immediately, duh.
dude: hey guy, i'm going to the mall today! wanna come?
latcher: can i come toooooooooo?
dude: ooh, this shirt is so cute, i think i might buy it!