kaein
A kaein is a guy with more energy than a raccoon on espresso, he’s got the strength of a beast, and he’ll be there for you no matter what, even if he curses you for it.
'He’s a kaein. He’s been through hell and still laughs at my dumb jokes.'
'He’s a kaein. I’ve seen him fight three guys just because they stole his last slice of pizza.'
'That guy is a kaein. He’s the kind of guy who’ll punch you and still be there when you need him.'