Facebook slagger
A Facebook Slagger is someone who disappears when it matters most like when the whole group is going wild and he’s just sitting there with his phone off like a cocky bastard.
'Bro, why aren't you here when we're all laughing at the memes?'
'I was in the middle of a pizza and you had to start a debate about the best meme of 2019.'
'He turned his phone off during the group chat argument about who's the best meme lord.'