galis
A person who’s super nice, but if you make them mad, they’ll be your best friend or your worst nightmare. They’ll stick with you through anything.
'She’s a galis, and she stuck with me through my worst day ever.'
'He’s a galis, and he was my best friend until I called him a loser.'
'She’s a galis, and she’s my best friend, but she’ll be my worst nightmare if I mess up.'