Lachitgall
A Lachitgall is a greasy, brainless creep who thinks being a creep is the same as being a friend and sends messages like he's your best friend.
Message: 'Hey, wanna hang out? I'll bring snacks.'
Tweet: 'I saw you in the hallway. I'm your friend.'
DM: 'I'll come to your house if you don't block me.'